bluuebunny/crossref_metadata_2025 huggingface dataset:
Extreme value statistics of edge currents in Markov jump processes and their use for entropy production estimation
Authors: Neri Izaak , Polettini Matteo
Published: May 2023

The infimum of an integrated current is its extreme value against the direction of its average flow. Using martingale theory, we show that the infima of integrated edge currents in time-homogeneous Markov jump processes are geometrically distributed, with a mean value determined by the effective affinity measured by a marginal observer that only sees the integrated edge current. In addition, we show that a marginal observer can estimate a fraction of the average entropy production rate in the underlying nonequilibrium process from the extreme value statistics in the integrated edge current. The estimated average rate of dissipation obtained in this way equals the above mentioned effective affinity times the average edge current. Moreover, we show that estimates of dissipation based on extreme value statistics can be significantly more accurate than those based on thermodynamic uncertainty ratios, as well as those based on a naive estimator obtained by neglecting nonMarkovian correlations in the Kullback-Leibler divergence of the trajectories of the integrated edge current.
Digital market orientation and organizational economic performance of service SMEs
Authors: Manuel Andrade Navia Juan , Parra Claudia , Diego Cedeno Juan
Published: May 2023

Market orientation is a high-impact factor for the success in the management of SMEs, especially in the digital business era, which is why companies are required to direct their management toward this segment. This study uses the deductive method to measure the relationship between orientation to the digital market and the organizational economic performance of service SMEs in a peripheral region of Colombia under a quantitative methodology. Likewise, the study is of a descriptive correlational type, and non-probability sampling is used for convenience. A sample includes 243 employees at the management level of 158 organizations in the region. The multidimensional MKTOR scale by Narver and Slater (1990) was adapted to measure the digital market orientation scale, while a scale designed and validated by the authors was used for economic performance. The hypothesized constructs were analyzed with the SEM approach using SPSS software and its AMOS complement. The results showed a positive and significant relationship between market orientation and the economic performance of SMEs (0.691, p < 0.00). Next, it was evidenced that SMEs have a low market orientation because they do not have technological tools designed to satisfy the needs of digital clients; they are unaware of the processes of the competition. Although they work in a coordinated manner at the cross-functional level, they show poor organizational performance.
AcknowledgmentThe authors thank the Universidad Surcolombiana for their support in the development of the research.
Water infrastructure resilience and water supply and sanitation development challenges in developing countries
Authors: Bulti Abebe Tadesse , Yutura Gonse Amelo
Published: May 2023

Water supply and sanitation development in developing countries, specifically in Ethiopia, appear to be making substantial progress. Governments, international organizations, and other organizations are contributing to the development of water supply and sanitation systems. Water supply and sanitation challenges are linked to climate change effects and the quest for climate-resilient development. This paper evaluates the current challenges in water supply and sanitation development in developing countries and infrastructure resilience. The research is based on the data collected throughout the practical development task. Some of the findings were the climate change effect and temporary adaptation mechanisms, such as intermittent supply causing further pressure variation and water loss in the system. Resilient water supply and sanitation development require an integrated approach based on practical experiences, the latest technological development in water supply and sanitation system operation and management tools, and climate change adaptation. A seamless understanding of engineering, management, and technology is required for the development and management of water supply and sanitation systems. Dispersed skills may be available that were not effective at this time, which calls for a different approach to training provision and skill development as a package on design, management, and recent technological support.
Elemental pollution status of different components of Ologe Lagoon, Lagos, Nigeria
Authors: Oyedeji Abdulrasaq Olalekan , Sanusi Mary Pinpinlade , Azeez Luqmon Adeyemi , Ayedun Hassan
Published: May 2023

This study evaluated the concentrations and distributions of nutrient and non-nutrient elements in water, sediment, mud, and vegetation of Ologe Lagoon, Lagos, Nigeria. Nutrient elements including Na, Ca, K, and Mg were found in high concentration values in the different components of the freshwater ecosystem. While the water had the least concentration of the elements, Trapa natans had the highest. Aluminium showed similar distribution patterns in the different components, except for T. natans. All the samples correlated significantly with water (p <0.05). Both the sediment and mud showed low potential ecological risk indexes of 5.3 and 5.92, respectively. Copper had the highest ecological risk with respect to single regulator indexes in the mud and sediment, notwithstanding its low concentration in the two components. Pollution indices suggested the low severity of non-nutrient elemental contamination of water, sediment, mud, and vegetation of Ologe Lagoon, and therefore, it is safe for human consumption, but not for agricultural irrigation. Pistia stratiotes and T. natans showed potentiality for use as photo-stabilisers and phytoremediators for some of the elements. The presence of radionuclides and rare earth elements in the components of Ologe Lagoon are instructive for specific policy initiatives to mitigate their effects on the population.
Neuroprotective Properties of Antiepileptics: What are the Implications
for Psychiatric Disorders?
Authors: Dell'Osso Liliana , Nardi Benedetta , Massoni Leonardo , Gravina Davide , Benedetti Francesca , Cremone Ivan Mirko , Carpita Barbara
Published: May 2023

Since the discovery of the first antiepileptic compound, increasing attention has
been paid to antiepileptic drugs (AEDs), and recently, with the understanding of the molecular
mechanism underlying cells death, a new interest has revolved around a potential
neuroprotective effect of AEDs. While many neurobiological studies in this field have focused
on the protection of neurons, growing data are reporting how exposure to AEDs can
also affect glial cells and the plastic response underlying recovery; however, demonstrating
the neuroprotective abilities of AEDs remains a changeling task. The present work
aims to summarize and review the literature available on the neuroprotective properties of
the most commonly used AEDs. Results highlighted how further studies should investigate
the link between AEDs and neuroprotective properties; while many studies are available
on valproate, results for other AEDs are very limited and the majority of the research
has been carried out on animal models. Moreover, a better understanding of the biological
basis underlying neuro-regenerative defects may pave the way for the investigation of further
therapeutic targets and eventually lead to an improvement in the actual treatment
strategies.
Design, Docking, Synthesis, and In vitro Evaluation of Potent Anti-tubercular Agents Targeting DNA Gyrase
Authors: Bhosale Manjiri D. , Thomas Asha B. , Lokhande Kiran B. , Swamy Kakumani V. , Basu Soumya , Chitlange Sohan S.
Published: May 2023

Background:

Tuberculosis caused by Mycobacterium tuberculosis has been reported to infect
about two-third of the global population and to continuously develop multidrug resistance. DNA gyrase, a
type II topoisomerase, is a promising target of the quinolone class of drugs in the treatment of tuberculosis.

Objective:

The present study is focused on the design and synthesis of newer nitrogen heterocyclics containing
indole, n-methyl piperazine, piperidine, and pyrrolidine ring structures.

Methods:

Initially designed compounds were evaluated for their affinity to the DNA gyrase target. The
molecular docking performed using FlexX indicated compounds IIb5 (1-(R)-(4-hydroxyphenyl)(4-
methylpiperazin-1-yl)methyl)-3-((S)-(4-hydroxyphenyl)(4-methylpiperazin-1-yl)methyl)urea and IIc5
((1-(R)-(4-hydroxyphenyl)(4-methylpiperazin-1-yl)methyl)-3-((S)-(4-hydroxyphenyl)(4-methylpiperazin-
1-yl)methyl) thiourea to exhibit promising binding affinity (dock score of -15.01 and -13.77) respectively
when compared to the reference MFX moxifloxacin (dock score -4.40) with the target 5BS8 (DNA gyrase).
Further, the best 10 compounds were synthesized by one-pot synthesis employing the reaction of
indole/N-methyl piperazine/piperidine/pyrrolidine with N-substituted benzaldehydes in the presence of
acetamide/urea/thiourea to afford the compounds in 54.60% to 85.47% yield. The synthesized compounds
were suitably characterized using chromatographic and spectroscopic tools.

Results:

In the microplate Alamar Blue assay (MABA), compounds IIb1, IIIc2, IIIb1, and IIb5 exhibited
good minimum inhibitory concentrations of 1.6 μg/mL, 3.12 μg/mL, and 12.5 μg/mL, respectively, when
compared to the standard rifampicin with 0.8 μg/mL inhibitory concentration. The MTB gyrase supercoiling
assay performed using Mycobacterium tuberculosis gyrase supercoiling assay kit demonstrated compound
IIb5 at a concentration of 300 μg/mL to show gyrase inhibition in comparison to MFX at 60
μg/mL. In the MTT assay performed using the human breast cancer cell line MCF-7, compounds IIc2,
IIb5, and IIb1 showed IC50 values of 2.57 μM, 12.54 μM, and 12.75 μM, respectively, compared to doxorubicin
(1.10 μM) at 7-48 hrs and 72 hrs of the study.

Conclusion:

Based on these observations, N-methyl piperazine class of compounds can serve as a
lead/pharmacophore for the rational design of potent molecules against MTB gyrase to combat the growing
issue of MDR-TB.
Screening of Selected Cultivars of Sweet Sorghum for Phytochemicals and In vitro Evaluation of Their Antihyperglycemic and Cytotoxic Activity
Authors: Kurella Sirisha , Addepally Uma
Published: May 2023

Background:

Sorghum, a wonder millet, is well known for its beneficial phytochemical profiles. In comparative terms, juice from sweet sorghum has better commercial potential as syrup in several food-based applications. Various sweet sorghum differs in their profile of various phytochemicals, which can impact the commercial potential of sweet sorghum juice.

Methods:

Our previous works on cultivars developed at ICAR-IIMR were screened for phytochemical, sugar and mineral profile. To give a holistic view of the phytochemical profile of sweet sorghum varieties, the present study is attempted to evaluate the total phenolic and flavonoid content, antihyperglycaemic and cytotoxic profile of the components present in the varieties CSV19SS, SSV84, SSV74. The phytochemical footprint of sweet sorghum juice was studied through HRLCMS.

Results:

The results showed ethyl acetate extract of SSV84 having potential antihyperglycemic effects with an IC50 of 22.156 ± 0.9 µg/ml (α-glucosidase) and 0.070 ± 0.02 mg/ml (α-amylase) with a comparatively higher phenolic (232.6 ± 1 mg GAE/g) and flavonoid (138.18 ± 0.9 mg QE/g) content. The chloroform extract of SSV 84 showed a higher cytotoxic effect at an IC50 of 165.502 ± 7 µg/ml (HeLa cells) and 237.895 ± 15 µg/ml (Hep G2 cells). HRLCMS profile of SSV 84 showed the presence of long-chain fatty acids in hexane extract. Anthraquinones, carotenoids, xanthophylls, cinnamic acid and derivatives, and isoflavones were present in chloroform extract, while Ethyl acetate extract was rich in phenolic acids and also consisted of coumarins, quinones, alkaloids, and terpenoids.

Conclusion:

The high cytotoxic and antihyperglycemic activities of extracts can be attributed to the presence of these phytochemicals.
Prediction of Cancer Driver Genes through Integrated Analysis of Differentially
Expressed Genes at the Individual Level
Authors: Gao Bo , Zhao Yue , Li Guojun
Published: May 2023

Introduction:

It is expected that certain driver mutations may alter the gene expression of their associated or interacting partners, including cognate proteins.

Methods:

We introduced DEGdriver, a novel method that can discriminate between mutations in drivers and passengers by utilizing gene differential expression at the individual level.

Results:

After being tested on eleven TCGA cancer datasets, DEGdriver substantially outperformed cutting-edge approaches in distinguishing driver genes from passengers and exhibited robustness to varying parameters and protein-protein interaction networks.

Conclusion:

Through enrichment analysis, we prove that DEGdriver can identify functional modules or pathways in addition to novel driver genes.
Green Economy with Blockchain and Microgrid
Authors: Joe I.R Praveen , D. Shrijith
Published: May 2023

100 % Green economy is a dream to be realized by every economy in the
world. Every economy is firm in its motives in terms of investing in Green Technology
and enhancing its contribution to the Green Economy, strategically any nation that
masters the art of maximizing its Green Energy productivity is going to be a crucial
player in the world order. In this scenario, Blockchain comes in as a tool that can be
positively exploited for mankind’s betterment, especially in the field of Energy
Conservation. Microgrid system in this context is a revolutionary mechanism for
opening up the market of energy exchange to the public and reducing energy
wastage/consumption.
A Sustainable Approach to Solid Waste Management. A Review
Authors: Kumar Mukesh , Singh S.K.
Published: May 2023

Achieving long-term solutions to today's waste challenges necessitates long-term strategy and effort. Population, urbanization, development, and industry all
contribute to the increase in trash. Energy use is also strongly related to waste
management, which is also a strong component for achieving an effective solution. The
waste energy conversion processes have technological limits, called thermodynamic
limits. Energy and entropy are variables that may be used to evaluate energy systems
and technologies. People's non-segregation tendencies, as well as their consumerism
inclinations, make waste management tasks difficult. Landfilling, combustion,
pyrolysis, gasification, incineration, etc. are insufficient to deal with such a large
volume of waste. Recently developed plasma base waste technology mimics nature's
waste management through matter-energy conversion with a scope of waste-to-energy
(WtE) conversion. This study shows that plasma-based technology has a high waste
volume handling capacity in a short span and also minimises waste exposure to nature
and society. Despite its high installation and maintenance costs, the income generated
from Syn-Gas and slag makes it financially viable. It is a sustainable way to manage
waste because it can handle large amounts of waste, takes the least amount of time to
process, and has the least amount of social and environmental impact. 
Biologically Active Peptides: Identification, Production and Biofunctionality
Authors: Lugo-Radillo Agustin , Tovar-Pérez Erik G.
Published: May 2023

According to reports from the World Health Organization (WHO), non transmissible chronic diseases, like diabetes, cardiovascular disorders, hypertension,
and cancer, among others, are the main causes of death worldwide, comprising 70% of
the total deaths. Therefore, there is a great interest in the search for alternative
biofunctional agents that can contribute to the prevention and treatment of these types
of diseases. Particularly, biologically active peptides (BAPs) represent an attractive and
promising alternative due to their therapeutic potential, since they can act in similar
ways to synthetic drugs. In this respect, BAPs extracted from food proteins of
vegetable origin have shown antioxidant, antihypertensive, antidiabetic, anticancer,
antithrombotic, anticholesterolemic, immunomodulatory, antiobesity, antiaging, and
antimicrobial properties, thus showing great potential as bioactive ingredients in
functional foods and pharmaceutical formulas. This chapter describes the main
procedures performed for the identification and production of BAPs, as well as the
health benefits of their biofunctionalities found in bioassays in vitro and in vivo, the
elucidation of their mechanisms of action and the therapeutic applications of BAPs
originated from underutilized vegetable sources. 
Biologically Active Peptides with Antiviral and Anti-COVID-19 Potential: Promising Insights for a Healthy Future
Authors: Perez-Ramirez Pamela , Lugo-Radillo Agustin
Published: May 2023

Adequate nutrition is essential for good health. The characterization of the
molecules present in grains - used in the human diet for thousands of years - and their
hydrolysates are currently a growing trend, due to their potential benefits on health, low
cost and minimal adverse effects. Grains contain many bioactive compounds, such as
carbohydrates, lipids and proteins; the latter can be cleaved by chemical hydrolysis or
enzymatic processes and generate smaller fragments named peptides. The continuous
attack of pathogenic microorganisms and viruses on humans makes necessary a
continuous search for new antimicrobial and antiviral molecules; in this respect, several
studies have found antimicrobial and antiviral properties in some peptides, with some
of these deriving from underutilized grains. In respect to this, an exhaustive
bibliographic search of these findings was performed by the use of the online search
engines NCBI, Google Scholar and Google. Therefore, this chapter aims to describe the
state-of-the-art scientific findings about the effects of peptides proceeding from
underutilized grains against microorganisms, particularly focusing on the antiviral
potential effects. 
Stimuli-responsive Biomaterials with Pharmacological Applications
Authors: Sánchez-Velandia Julián Eduardo , Valverde David , Porcar Raul , Luz Villa Aída
Published: May 2023

Natural and synthetic biomaterials are useful for different biological and
industrial applications, and their impact, as well as the interest (in both academy and
industry) in those materials, have grown up in the last few years. This chapter presents
some advances in the synthesis of biopolymers and related materials using different
synthetic and non-synthetic strategies (from conventional chemical synthesis using
click reactions and more sophisticated ones, such as electrospinning) and their
applications in the field of medicine and biology. For the treatment of diseases and
tissue engineering, we describe several biomaterials prepared by different extraction
methodologies from natural sources (e.g., chitosan and collagen) and their benefits as
biodegradability, circular economy, and recycling. Several synthetic approximations
for the preparation of biopolymers and their potential in several applications are
discussed based on the available information about synthesis, application, and
biodegradability. As several approaches are currently applied for the synthesis of
biomaterials with different applications, in the second and last sections, we discuss
some of these strategies considering the green chemistry principles. In many cases, an
appropriate building and synthesis of biopolymers could optimize chemical and
physical properties, such as solubility, viscosity, adhesiveness, degradability, and in
vivo response. In this chapter, also the conditions of synthesis of monomers will be
discussed, focusing on some advanced and green strategies for replacing toxic solvents
(and even complexes) that are used and make the process of obtaining green materials
difficult according to the desired target biopolymers. Finally, some applications related
to pharmacology and tissue engineering will be presented. 
Computational and Theoretical Techniques in Biomedicine
Authors: Mukherjee Saikat , Sobhachandra Singh Wayenbam , Banerjee Sumita
Published: May 2023

 Biomedicine research has gained momentum for the development of various
computational and theoretical techniques. Researchers working in biomedicine and
bioinformatics depend on computational intelligence and its widespread applications.
New algorithms have been described that enable computational simulations and
mathematical modelling in coordination with analytical methods to comprehensively
study biological systems. Many algorithms, such as Artificial Neural Networks
(ANNs), Rough Sets (RS), Fuzzy Sets (FS), Particle Swarm Optimization (PSO),
Evolutionary Algorithm (EA), etc., allow reliable and accurate analysis of vast data sets
in biomedicine. Computational techniques analyse gene expression data obtained from
microarray experiments, predict protein-protein interactions, model the human body in
disease conditions, such as Alzheimer’s disease or cancer, follow the progression of the
diseases, classify tumours, analyse which genotype responds to certain drugs, etc.
Multiscale modelling of the human body in various disease conditions is a topic of
interest in this context. Relevantly, the “Virtual Human” project has initiated the study
of human organs and systems in disease conditions based on computational modelling.
Therefore, many computational and theoretical techniques have been developed for
intelligent information processing to lead an expansion in biomedicine research. 
Penerapan Methaporical Thinking: Kemampuan Matematis Peserta Didik
Authors: Putri Bunga Nurwiyan , Amirudin Amirudin , Pratiwi Dona Dinda
Published: May 2023

Penelitian ini bertujuan untuk mengetahui proses belajar belajar di SMA Muhammadiyah 2 Bandar Lampung yang menerapkan Metaphorical Thinking apakah memberi berdampak pada kemampuan komunikasi matematis peserta didk. Tidak hanya itu, peneliti juga memberikan soal kepada peserta didik untuk mengetahui hasil pre-survey sebelum dilakukannya treatment kepeda peserta didik. Peneliti juga mengadopsi Posttest Only Control Group Design yang akan diaopsi dalam proses belajar-mengajar di kelas. Hasil penelitian menunjukan bahwa terdapat perbedaan antara kemampuan koneksi matematis antara peserta didik yang yang treatmenat dengan menggunakan pendekatan Metaphorical Thinking serta kelas yang tidak dilakukan treatment. Hasil analisis juga menunjukan bahwa signifikansi 0,042 kurang dari 0,05 hal tersebut merepresentasikan bahwa kemampuan komunikasi matematis antara peserta didik yang menggunakan pendekatan Metaphorical Thinking lebih efektif. Sedangkan kemampuan peserta didik pada kelas kontrol menunjukan bahwa peserta didik tidak mengalami perubahan dalam proses pembelajaran
Science Teacher Education Considering the Covid-19 Pandemic: The African Account
Authors: Badmus Olalekan Taofeek , Amuda Afees Akanni , Akanbi Abdulrasaq Oladimeji , Omosewo Esther Ore
Published: May 2023

The outbreak of Covid-19 the world over is devastating. The responses to the disruptions experienced had left many nations in doubt of a possible recovery in years to come. Various sectors of human needs were distorted, and the socioeconomic impact cannot be overestimated. The education sector is one of the first sectors to be locked down immediately after the emergence of the pandemic and about the last to be recalled after the first wave of Covid-19.  Education institutions are experiencing massive reforms globally amid the Covid-19 outbreak and the effect of the lockdown is enormous. The economic impact of the pandemic is more pronounced than the academic, especially in science and science teacher education. This paper investigated science teacher education considering the Covid-19 pandemic. Specifically, this research explored the African account of Covid-19, the effect of Covid-19 on science teacher education, the rationale for a rethink in science teacher education amidst Covid-19, the limitations to science teacher education post-Covid-19 and the way forward for stakeholders amid/post Covid-19. This article concluded among others that more is required in terms of investment in the education sector to actualize the modern approaches required to cope with the pandemic situations in Africa.
Pengembangan Lembar Kerja Peserta Didik (LKPD) berbasis Literasi Konten Kearifan Lokal pada Materi Asam dan Basa Kelas XI SMA
Authors: Saputri Febri , L.F.X. Endang Widjajanti
Published: May 2023

Penelitian pengembangan ini dilakukan dengan tujuan: (1) menghasilkan produk lembar kerja peserta didik (LKPD) materi asam basa yang mengacu pada model pembelajaran student team achievement divission (STAD) berbasis literasi konten kearifan lokal sesuai dengan kekhasan yang dibuat; (2) mengetahui kelayakan LKPD yang dihasilkan berdasarkan penilaian lima guru kimia SMA; (3) mengetahui respon peserta didik terhadap produk melalui uji keterbacaan oleh peserta didik. Prosedur pengembangan mengacu pada model pengembangan 4D. Tahap yang dilakukan antara lain: (1) Define (pendefinisian); (2) Design (perancangan); (3) Development (pengembangan); (4) Disseminate (penyebaran). Hasil validasi oleh dosen ahli pembelajaran kimia LKPD ini layak digunakan setelah direvisi berdasarkan saran penilai. Hasil penilaian kualitas produk LKPD oleh reviewer memperoleh persentase keidealan 88,00% dan hasil uji keterbacaan oleh peserta didik memperoleh persentase keidealan sebesar 83,31%, sehingga secara keseluruhan LKPD ini layak digunakan pada pembelajaran kimia.
Berpikir Kreatif dalam Pengajuan Masalah Matematis
Authors: Martini Aba Maria , Nusantara Toto
Published: May 2023

Kemampuan pengajuan masalah matematis merupakan aspek penting yang harus diperhatikan dalam pembelajaran matematika. Tujuan penelitian ini adalah menyelidiki dan mendeskripsikan kemampuan pengajuan masalah matematis siswa terkait berpikir kreatif. Penelitian ini merupakan penelitian kualitatif-deskriptif. Penelitian ini dilaksanakan di kelas VIII SMP Muallimin Blitar-Malang. Subjek penelitian terdiri dari 28 orang siswa. Dari hasil tes ditemukan bahwa siswa yang mampu mengajukan masalah matematis dilihat dari apakah pengajuan masalah matematis tersebut memenuhi kriteria dalam indikator berpikir kreatif yang meliputi kelancaran, keluwesan, keaslian dan elaborasi. Dan hasil penelitian menunjukkan bahwa peserta penelitian dalam pengajuan masalah matematisnya tidak sampai sebagian memenuhi kriteria atau tuntutan dalam indikator berpikir kreatif, pola berpikir kreatif mereka masih rendah yang ditunjukkan dari pengajuan masalah yang diajukan.
Pengetahuan Parsial: Representasi Guru pada Relasi dan Fungsi
Authors: Nisak Dzikiyan Khairiyatun , Nusantara Toto
Published: May 2023

Pengetahuan representasi merupakan indikator pengetahuan matematis guru sebagai salah satu tolok ukur profesionalitas guru. Tujuan studi kasus ini untuk mengetahui kemampuan representasi guru pada relasi dan fungsi. Studi kasus ini menggunakan pendekatan kualitatif. Studi kasus ini dilakukan pada 6 subjek penelitian (kategori H (High), M (Midle), L(Low), dan VL (Very Low)) yang dipilih dari 314 peserta UKG Kabupaten Blitar tahun 2015. Hasil tes dapat dikelompokkan  menjadi 3 kelompok. Studi kasus ini menunjukkan bahwa pengetahuan representasi geometris guru masih kurang. Pemahaman relasi dan fungsi masih bersifat parsial. Temuan lainnya adalah bahwa pengetahuan matematis dipengaruhi oleh konsistensi penerapannya, kemauan untuk terus memperdalam ilmu matematika, pengetahuan siswa yang dapat memicu kreativitas guru untuk menemukan cara efektif agar siswa bisa memahami materi. Sedangkan untuk kemampuan representasi pada suatu materi , dapat dilatih melalui pembiasaan menyatakan relasi dan fungsi dalam bentuk aljabar, geometris, tabel, maupun diagram.
Analisis Kemampuan Literasi Matematis Siswa dalam Memecahkan Masalah Matematika Berbentuk Soal Cerita
Authors: Muslimah Hujjatul , Pujiastuti Heni
Published: May 2023

Tujuan penelitian ini adalah untuk mendeskripsikan bagaimana kemampuan literasi matematis siswa. Subjek penelitian yaitu 30 orang siswa kelas XI di SMP Islam Al Azhar 27 Cilegon yang digolongkan pada tingkat kemampuan matematika. Penggolongan tingkat kemampuan matematika siswa berdasarkan nilai rata-rata ulangan harian matematika berdasarkan kriteria ketuntasan minimal (KKM). Metode penelitian yang digunakan adalah deskripsi kualitatif. Data dalam penelitian ini didapatkan dari hasil observasi, tes, dan wawancara. Tes yang digunakan adalah tes kemampuan literasi matematis berjumlah 6 soal yang mengacu pada indikator kemampuan literasi matematis PISA. Hasil tes menunjukkan siswa dalam kelompok kemampuan matematika rendah (S1) berada pada level 2 kemampuan literasi matematis. Selanjutnya siswa dalam kelompok kemampuan matematika sedang (S2) berada pada level 3 kemampuan literasi matematis. Sedangkan siswa dalam kelompok kemampuan matematika tinggi (S3) berada pada level 4 kemampuan literasi matematis, yang artinya masih pada taraf menengah. Berdasarkan tes kemampuan literasi yang telah dilakukan, terlihat bahwa semakin tinggi kategori kelompok siswa semakin tinggi pula kecenderungan menjawab soal dengan benar. Sebaliknya, semakin tinggi kategori kelompok siswa semakin rendah kecenderungan menjawab soal benar.
Efektivitas Edmodo Berbasis Penemuan Terpandu untuk Meningkatkan Keterampilan Pemecahan Masalah
Authors: Rahayu Bety , Suparwoto Suparwoto
Published: May 2023

Penelitian ini bertujuan untuk mengetahui keefektifan model penemuan terbimbing dengan Edmodo dalam meningkatkan keterampilan pemecahan masalah. Metode yang digunakan adalah eksperimen semu dengan desain kelompok kontrol pretes-postes. Penelitian ini di MAN 1 Yogyakarta. Ada dua kelompok sampel yaitu satu kelompok eksperimen (N = 28) dan satu kelompok kontrol (N = 28). Data menggunakan tes keterampilan pemecahan masalah dan dianalisis dengan model campuran anava. Hasil data menunjukkan bahwa peningkatan keterampilan pemecahan masalah fisika pada kelompok eksperimen signifikan sebesar 92,6% sedangkan pada kelompok kontrol hanya 4,1%.
Penerapan Model PBL Menggunakan NHT untuk Meningkatkan Kemampuan Pemecahan Masalah dan Minat Belajar Siswa
Authors: Minda Unisty Reznyfa , Anwar Hadi FS Cecep , Jaenudin Jaenudin
Published: May 2023

Penelitian ini bertujuan untuk mengetahui pencapaian kemampuan pemecahan masalah dan minat belajar siswa yang mendapatkan pembelajaran dengan model PBL menggunakan NHT lebih baik dibandingkan dengan siswa yang mendapatkan pembelajaran ekspositori. Penelitian ini menggunakan metode kuasi eksperimen dengan desain penelitian the matching only pretest-posttest control group design. Populasi dalam penelitian ini adalah seluruh siswa kelas VIII di SMP Negeri 9 Kota Serang tahun ajaran 2018/2019 semester genap. Pengambilan sampel menggunakan teknik cluster random sampling untuk memilih dua kelas, yaitu kelas eksperimen dan kelas kontrol. Instrumen yang digunakan yaitu tes kemampuan pemecahan masalah matematis dan non-tes skala minat belajar siswa. Pengujian hipotesis dalam penelitian ini menggunakan uji-t dengan taraf signifikansi 5%. Hasil penelitian menunjukkan bahwa pencapaian kemampuan pemecahan masalah matematis dan minat belajar siswa yang mendapatkan pembelajaran model PBL menggunakan NHT lebih baik dibandingkan dengan siswa yang mendapatkan pembelajaran ekspositori.
Eksplorasi Etnomatematika Motif Batik Lampung pada Penerapan Materi Grafik Fungsi
Authors: Sutrisno Emiliana Ningtyas , Saija Louise M
Published: May 2023

Etnomatematika merupakan gabungan antara materi pelajaran matematika dengan kearifan lokal potensial untuk diterapkan dan digunakan oleh para guru di Indonesia dalam upaya memperkenalkan konsep matematis. Hal ini disebabkan banyaknya tradisi dan kebudayaan pada setiap daerah di Indonesia, salah satunya dari Provinsi Lampung. Lampung memiliki motif batik khas yang dipengaruhi oleh lingkungan dan kebudayaan. Tujuan penelitian ini untuk melakukan eksplorasi terhadap motif batik khas Lampung dengan materi grafik fungsi. Hasil penelitian menunjukkan bahwa motif Siger terbentuk dari fungsi trigonometri. Mutlak dan ln motif Sembagi/Cilugam terbentuk dari fungsi mutlak dan persamaan garis motif Pucuk Rebung terbentuk dari fungsi mutlak motif Payung Agung terbentuk dari fungsi trigonometri, mutlak, kuadrat, dan persamaan garis.
Effects of WAKE.TAIWAN Healthy Lifestyle Web-Based Promotion Programs on Adults’ Awareness of Self-perceived Weight Status and Their Healthy Lifestyle Stages: Retrospective Analysis (Preprint)
Authors: Lord Asta Y Z , Pan Wen-Harn
Published: May 2023

BACKGROUND

Obesity is a major risk factor of many chronic diseases. However, current obesity control policies and actions are not sufficient to halt the pandemic. It has been documented that more than half of all adults are not able to interpret their own weight status, not to mention to practice healthy lifestyles. Social media and interactive websites can reach people on a long-term basis, which may be used as intervention vehicles to build up cognition for weight control and to promote healthy behavior practices.

OBJECTIVE

WAKE.TAIWAN is an ongoing web-based multifaceted healthy lifestyle promotion program with social media and interactive websites as the intervention vehicle. This study aimed to examine whether adults reached by our program would have increased awareness to their own anthropometric measures, correctly judge their body weight status, and practice healthy behaviors over time.

METHODS

This study adopted a quasi-experimental design with web-based questionnaire surveys. The experimental group consisted of WAKE.TAIWAN Facebook group members aged 20-65 years who have used the interactive website health education resources (n=177). The group was further stratified into 2 subgroups based on their duration of participation (E1 group: duration <1 year; E2 group: duration ≥1 year). The control group consisted of other Facebook users (n=545) in the same age range who had not been exposed to the health education materials of this project. A total of 722 people (male: n=267, 37%; and female: n=455, 63%) participated in our survey in 2019. Data were analyzed to evaluate program effectiveness using a generalized linear model.

RESULTS

The proportion of people correctly interpreting their own weight status in the experimental group was greater than that of the control group (control group: 320/545, 58.7%; group E1: 53/88, 60%; and group E2: 64/89, 72%). The E2 experimental group was significantly better than the control group in paying attention to weight-related measures and in correctly interpreting their own weight status (odds ratio 1.73, 95% CI 1.04-2.89; P=.04). With respect to the behavioral stages of practicing healthy eating and active living, both experimental groups, E1 and E2, performed significantly better than the control group (group E1: P=.003 and P=.02; and group E2: P=.004 and P<.001, respectively).

CONCLUSIONS

This study demonstrates that the longer the participants were exposed to our social media–based programs, the higher the proportion of them that would have the correct judgement on their weight status and fall in the higher stages of healthy lifestyle behaviors. A longitudinal follow-up survey is in place to verify these findings.

CLINICALTRIAL
Teleworking to Support Accommodation, Inclusion, and Health of Aging Workers: Protocol for a Study to Design, Validate, and Test a Reflective Application Guide (Preprint)
Authors: Lecours Alexandra , Hong Quan Nha , Maclure Joanie , Bédard-Mercier Roxanne , Vincent Claude , Boucher Normand , Lord Marie-Michèle
Published: May 2023

BACKGROUND

Aging workers constitute a growing population in many countries and form an indispensable and qualified resource, especially in the context of the labor shortage. Despite work’s many benefits for individuals, organizations, and societies, it also presents several risks and challenges that may lead to occupational injuries. Thus, rehabilitation professionals and managers working with this emerging and unique clientele during their return to work after an absence often lack the tools and skills to support them, especially in the changing world of work that includes the rise of telework. Indeed, as an increasingly present work arrangement, telework has the potential to be used as an accommodation modality that can facilitate inclusion and healthy participation in the workplace. However, the implications of this topic for aging workers require study.

OBJECTIVE

This paper presents the protocol of a study that aims to develop a reflective telework application guide to support the accommodation, inclusion, and health of aging workers after an absence from work. Specifically, this study will (1) explore the experience of aging workers, managers, and rehabilitation professionals regarding telework and its impact on accommodation, inclusion, and health; (2) use a validated logic model to design a reflective application guide; and (3) test and evaluate the guide.

METHODS

Following a 3-phase developmental research design, individual interviews with aging teleworkers, managers, and rehabilitation professionals will enable the collection of qualitative data to be used in generating a logic model of levers and good practices, leading to the creation of a reflective application guide. Validation of this guide by workers and managers to measure its acceptability and applicability in daily life will precede its implementation.

RESULTS

Data collection began in spring 2023 and initial results are expected in fall 2023. This study aims to generate a concrete tool—namely, the reflective telework application guide—that rehabilitation professionals could use to support managers and aging workers during their return to work through the healthy use of telework. All phases of the study include conducting dissemination activities to share the results of the project and increase its sustainability potential (ie, publication through social networks, podcasts, conferences, and scientific publications).

CONCLUSIONS

As the first of its kind, this project aims to produce innovative impacts at several levels, including practical, scientific, and societal impacts. In addition, the results will provide healthy solutions to the labor shortage in a changing world of work, where digital and teleworking are becoming increasingly important.

INTERNATIONAL REGISTERED REPORT

DERR1-10.2196/46114
A Conference (Missingness in Action) to Address Missingness in Data and AI in Health Care: Qualitative Thematic Analysis (Preprint)
Authors: Rose Christian , Barber Rachel , Preiksaitis Carl , Kim Ireh , Mishra Nikesh , Kayser Kristen , Brown Italo , Gisondi Michael
Published: May 2023

BACKGROUND

Missingness in health care data poses significant challenges in the development and implementation of artificial intelligence (AI) and machine learning solutions. Identifying and addressing these challenges is critical to ensuring the continued growth and accuracy of these models as well as their equitable and effective use in health care settings.

OBJECTIVE

This study aims to explore the challenges, opportunities, and potential solutions related to missingness in health care data for AI applications through the conduct of a digital conference and thematic analysis of conference proceedings.

METHODS

A digital conference was held in September 2022, attracting 861 registered participants, with 164 (19%) attending the live event. The conference featured presentations and panel discussions by experts in AI, machine learning, and health care. Transcripts of the event were analyzed using the stepwise framework of Braun and Clark to identify key themes related to missingness in health care data.

RESULTS

Three principal themes—data quality and bias, human input in model development, and trust and privacy—emerged from the analysis. Topics included the accuracy of predictive models, lack of inclusion of underrepresented communities, partnership with physicians and other populations, challenges with sensitive health care data, and fostering trust with patients and the health care community.

CONCLUSIONS

Addressing the challenges of data quality, human input, and trust is vital when devising and using machine learning algorithms in health care. Recommendations include expanding data collection efforts to reduce gaps and biases, involving medical professionals in the development and implementation of AI models, and developing clear ethical guidelines to safeguard patient privacy. Further research and ongoing discussions are needed to ensure these conclusions remain relevant as health care and AI continue to evolve.
“And Jesus began to teach”: A Transitivity Analysis of The Parable of the Sower
Authors: Atta-Asamoah Obed
Published: May 2023

Religious discourse offers significant value for linguistic analysis. Functional analysis of religious texts provides a lexico-semantic approach to interpreting these discourses, though it remains underexplored in the literature. To fill this gap, the study undertook a functional analysis of the Parable of the Sower within the framework of transitivity. A mixed-method approach was employed. The text was taken from the Modern English Version (MEV) (Mark 4:1-20). The process types and their participants and the worldview of the parable were analysed within the framework. The material process type dominated the text, occurring 42 times. This was followed by the relational, mental, verbal and behavioural process types. The actor participant dominated the data. The text is highly action-oriented with the world of the text concerned with happenings, movements and tangible actions. The worldview of the parable could be described as: the nature of Christians upon receiving the word and instructions towards bearing fruits. Enthusiasm, materialism, double-minded and being stressed characterize the nature of Christians upon receiving the word while commitment, focus, steadfastness and faithfulness represent the instructions towards seed bearing. The textual and interpersonal metafunctions of language should be employed to consolidate the findings presented in this paper.
Indecisiveness as an Underlying Factor for Procrastination among Young Adults
Authors: Reddy E Ananya , Vijayan Deepthi
Published: May 2023

Abstract: The purpose of the present study is to assess if indecisiveness is a factor that leads to individuals procrastination. The study also aims to assess whether there is any significant difference in sex with respect to procrastination and indecisiveness and to also check whether there is any significant difference in undergraduate and postgraduate students with respect to procrastination and indecisiveness. A sample of 118 young adults (59 males , 59 females) aged between 18-25 years participated in the study. The procrastination scale developed by Joseph R.Ferrari was used to measure the procrastination among young adults and the measurement scale for indecisiveness developed by Veerle Germeijs and Paul De Boeck was used to measure the indecisiveness. Descriptive statistics, Pearson's correlation and Independent sample T-test was used for statistical analysis. The findings indicated that there is positive but no correlation between procrastination and indecisiveness. Males and females do not differ significantly in their procrastination Males and females differ significantly in their Indecisiveness. Undergraduate and postgraduate students differ in their Procrastination whereas Undergraduate and postgraduate students do not differ in their Indecisiveness. Future implications have also been discussed in the present study.
Child Monitoring System using IOT Device
Authors: V Sundara Siva Kumar , L Pavithra M, Mounika , V Varshitha B.R.
Published: May 2023

Abstract: With increasing crime rates such as child kidnapping, child trafficking, child abuse, and so on, the need for an advanced smart security system has become a necessity. With this motivation, a self-alerting “child monitoring system using IOT” is developed to aid parents to monitor and track their children in real time as an alternative to staying beside them. This system is intended as an everyday wearable device for the child, in the form of a wristband, hand glove, armband, or belt. The system is designed to continuously monitor the location and body vitals of children. This electronic system comprises a Nodemcu esp8266 controller and sensors to detect changes in parameters such as temperature, humidity, and pulse rate. The system also uses a GSM and GPS module. The location of the victim is traced using the GPS module and is sent to the registered contact numbers as a text message using a GSM module.
Passenger Alert Application
Authors: J Mr. Jegan Amarnath , S Raizudeen , S Kiran Kumar
Published: May 2023

Abstract: This paper describes the creation of an intelligent real-time interactive public transport application. The application focuses on enhancing the user experience and improving communication among passengers. The main features of the application include a chat module that enables users to have conversations, facilitating the exchange of information and providing a platform for passengers to inform others about any issues or disruptions in the public transportation system. Additionally, the application incorporates an alarm module designed to alert or awaken passengers from their sleep or quick naps when the bus enters a buffer zone, indicating that their destination is approaching.By leveraging real-time data and intelligent algorithms, the application enhances the overall quality of public transportation services. The chat module promotes community engagement and empowers passengers to actively contribute to the improvement of the system's reliability and efficiency. Furthermore, the alarm module serves as a valuable tool for passengers, ensuring they are informed and prepared as their destination approaches, thus minimizing the risk of missing their stop.The development of this intelligent application addresses the growing need for efficient and user-centric public transportation solutions. It harnesses the power of real-time data and interactive communication to create a seamless and reliable travel experience for passengers. The findings and insights from this project contribute to the advancement of intelligent transportation systems, offering practical solutions to the challenges faced by public transportation networks worldwide.
Review Paper of Wear on Journal Bearing
Authors: Chaudhari Dinesh S. , Kumar Vinay
Published: May 2023

Abstract: Journal Bearing is used to bear the load and confine the rotation of the shaft. A loaded rotating journal (Shaft) is supported by circular bushing (sleeve or bearing), the diameter of bearing is slightly more than diameter of journal, to provide the clearance so proper supply of lubrication oil is possible, which can enhance the performance characteristics of journal bearing. Journal bearing are mostly used to carry the radial loads of shafts working in dry and lubrication conditions. Journal bearing is used in various applications like sugar mill bearing, cement industry and turbine etc. The hole or groove is provided on bearing for the supply of lubricant. Journal bearings are most suitable for low temperature applications with slow speed. The common reasons for failure of journal bearing are the wear and temperature of journal bearing. The bearing is worn out and leading to wear particles in lubricants, heavy vibrations may be cause by rubbing oil whirl.