bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ecological Momentary Assessment of Cognition in Clinical and Community Samples: Reliability and Validity Study
Authors: Singh Shifali , Strong Roger , Xu Irene , Fonseca Luciana M , Hawks Zoe , Grinspoon Elizabeth , Jung Lanee , Li Frances , Weinstock Ruth S , Sliwinski Martin J , Chaytor Naomi S , Germine Laura T 
Published: March 2023

Background
The current methods of evaluating cognitive functioning typically rely on a single time point to assess and characterize an individual’s performance. However, cognitive functioning fluctuates within individuals over time in relation to environmental, psychological, and physiological contexts. This limits the generalizability and diagnostic utility of single time point assessments, particularly among individuals who may exhibit large variations in cognition depending on physiological or psychological context (eg, those with type 1 diabetes [T1D], who may have fluctuating glucose concentrations throughout the day).

Objective
We aimed to report the reliability and validity of cognitive ecological momentary assessment (EMA) as a method for understanding between-person differences and capturing within-person variation in cognition over time in a community sample and sample of adults with T1D.

Methods
Cognitive performance was measured 3 times a day for 15 days in the sample of adults with T1D (n=198, recruited through endocrinology clinics) and for 10 days in the community sample (n=128, recruited from TestMyBrain, a web-based citizen science platform) using ultrabrief cognitive tests developed for cognitive EMA. Our cognitive EMA platform allowed for remote, automated assessment in participants’ natural environments, enabling the measurement of within-person cognitive variation without the burden of repeated laboratory or clinic visits. This allowed us to evaluate reliability and validity in samples that differed in their expected degree of cognitive variability as well as the method of recruitment.

Results
The results demonstrate excellent between-person reliability (ranging from 0.95 to 0.99) and construct validity of cognitive EMA in both the sample of adults with T1D and community sample. Within-person reliability in both samples (ranging from 0.20 to 0.80) was comparable with that observed in previous studies in healthy older adults. As expected, the full-length baseline and EMA versions of TestMyBrain tests correlated highly with one another and loaded together on the expected cognitive domains when using exploratory factor analysis. Interruptions had higher negative impacts on accuracy-based outcomes (β=−.34 to −.26; all P values <.001) than on reaction time–based outcomes (β=−.07 to −.02; P<.001 to P=.40).

Conclusions
We demonstrated that ultrabrief mobile assessments are both reliable and valid across 2 very different clinic versus community samples, despite the conditions in which cognitive EMAs are administered, which are often associated with more noise and variability. The psychometric characteristics described here should be leveraged appropriately depending on the goals of the cognitive assessment (eg, diagnostic vs everyday functioning) and the population being studied.
Direct seismic modeling: day surface topography and shallow subsurface anisotropy
Authors: Golubev V. I. , Shevchenko A. V. , Ekimenko A. V. , Petrukhin V. Yu. 
Published: March 2023

Introduction. The article is devoted to one of the problems in the development of oil and gas fields - the construction of correct geological models of the subsurface space. Researchers from various scientific groups around the world have proposed various ways to improve the accuracy of the computer simulations used in this process. The purpose of this study is to assess the degree of influence of the day surface relief and the anisotropy of the upper part of the geological section on the recorded seismic signal using a realistic model of the Orenburg field as an example.Materials and methods. A seismogeological model describing the Lower Permian interval of the Orenburg geological section is considered. According to well data, the elastic properties of geological formations were estimated: density and propagation velocities of longitudinal and transverse waves. There is a high contrast of P-wave velocities estimated from sonic logs. The reservoir in this model is confined to the lower layers. It is composed of sulfate-carbonate media, uniform in density and acoustic properties. Using the grid-characteristic method, zero-offset synthetic seismograms were calculated. The choice of structural curvilinear computational grids made it possible to correctly consider the relief of the day surface.Research results. In this work, two different models were compared. The first model included the anisotropy of the upper part of the section and the topography of the day surface. In the second model, the upper boundary of the computational domain was flat, and the entire medium was considered within the framework of an isotropic linear elastic model. The analysis of synthetic seismograms showed that the anisotropy inherent in this model does not significantly affect the recorded seismic wave field. However, considering the relief of the day surface significantly shifts the times of arrival of reflected waves.Discussion and Conclusion. The algorithm presented in the paper can be used to verify the field data processing graph, since the assessment of the anisotropy of the medium is a standard step in building a velocity model. The presented approach can be extended to 3D models of realistic dimensions.
Original article Spatial-three-dimensional wave processes’ modeling in shallow water bodies taking into account the vertical turbulent exchange features
Authors: Protsenko E. A. , Panasenko N. D. , Strazhko A. V. 
Published: March 2023

Introduction. Reliable prediction of indicators of turbulent flows is a very difficult task, which is explained by the exceptional physical complexity of turbulence, in particular its probabilistic nature, a wide space-time spectrum and a fundamentally three-dimensional non-stationary nature. Despite conducting a wide range of studies focused on the problem under consideration, they did not fully reflect the totality of various factors and processes affecting the structure and parameters of vertical turbulent mixing. This indicates the need for a systematic analysis of the problem and modeling of such complex formalized systems. The aim of the work is to construct a scenario of changes in hydrodynamic wave processes of the coastal zone, based on an improved mathematical model of wave processes.Materials and methods. The article is devoted to the study of spatial-three-dimensional wave processes in shallow water bodies, taking into account the features of turbulent exchange depending on the source and localization in the column of liquid, as well as the study of the influence of regular wave processes on turbulent exchange and vertically using a mathematical model of wave processes based on the system of Navier-Stokes equations, including three equations of motion in the with dynamically changing geometry of the computational domain.The results of the study. Based on the developed software package, a scenario of changes in hydrodynamic wave processes of the coastal zone is constructed, the formation of vortex structures is predicted. Discussion and conclusions. The separation of the wave flow into a near-surface macroturbulent layer caused by wave motion and a lower layer with background hydrodynamic turbulence is proved, the strength and intensity of turbulence changed synchronously with wave oscillations, demonstrating a pronounced asymmetry of turbulence generation throughout the water column.
A family of inverse characteristics methods
Authors: Petrov I. B. , Petrov D. I. 
Published: March 2023

Introduction. The main idea of the grid-characteristic method is to take into account the characteristic properties, systems of hyperbolic equations, and the finite velocity of propagation of perturbations in the simulated media.Materials and methods. The simplest hyperbolic equation is a one-dimensional linear transfer equation. To increase the order of approximation of the grid-characteristic scheme to the second, you can use the Bim-Warming scheme. If we use a four-point pattern, we get a central Lax-Vendroff scheme. Difference schemes for the linear transfer equation can be obtained using the method of indefinite coefficients.Results. The grid-characteristic scheme admits a conservative variant, which is relevant if there are discontinuities (shock waves, shock waves) inside the integration domain, while the original system of equations for a matrix with constant coefficients, in partial derivatives, should be presented in a divergent form.Discussion and conclusions. When numerically solving a three-dimensional problem, the construction is performed similarly, in the case of upper and lower bounds, after scalar multiplication of the scheme by eigenvectors, relations approximating the compatibility conditions with the first order of accuracy are obtained.
Original article Machine learning in the analysis of the electromagnetic field influence on the rate of oilfield equipment’s corrosion and salt deposition
Authors: Khusnullin Sh. R. , Koledina K. F. , Alimbekova S. R. , Ishmuratov F. G. 
Published: March 2023

Introduction. The formation of salt deposits and oilfield equipment’s corrosion in most oil fields has become particularly relevant due to the increase in the volume of oil produced and the increase in its water content in recent years. The deposition of salts in the formation and wells leads to a decrease in the permeability of the oil reservoir, the flow rate of wells. The aim of the work is to use machine learning algorithms to simulate the effects of an electromagnetic field on the processes of salt deposition and corrosion. Prediction of experimental results will allow faster and more accurate experiments to establish the influence of electromagnetic fields on the processes of corrosion and salt deposition.Materials and methods. Three groups of data were used, to train the models, differing in the composition of the studied initial model salt solution: the waters of the Vyngapurovsk’s and Priobsk’s deposits, as well as tap water. The following machine learning models were used: linear regression with Elastic-Net regularization, the k-nearest neighbors algorithm, the decision tree, the random forest and a fully connected neural network.Results. The processes of electromagnetic field influence on the formation of salt deposits and corrosion of oilfield equipment were simulated with the help of machine learning algorithms. Python program has been developed to predict the output results of experiments. Modeling with various models and their parameters is carried out.Discussion and conclusions. It was found that the decision tree and the random forest have the best accuracy of predictions, from the experiments conducted. This is due to the fact that there is too little data in the training samples. With the increase in the number of observations, it is worth using neural networks of various architectures.
”Holy shit!!! Jos tuo ei herätä ihmisiä niin sitten ei mikään!” Salaliittoteoreettinen populistinen kuvittelu ja tunnestruktuurit sosiaalisessa mediassa
Authors: Valaskivi Katja , Jääskeläinen Petri , Huhtamäki Jukka , Sumiala Johanna 
Published: March 2023

Artikkeli analysoi salaliittoteorioita populistisena kuvitteluna suomenkielisen sosiaalisen median keskusteluissa pandemiavuonna 2020–2021. Artikkelissa populismia tarkastellaan poliittisena genrenä, joka tuottaa ja ylläpitää tietynlaista poliittista kuvittelua ja tunnestruktuuria sekä perustuu eräänlaiseen ideologiseen maailmankuvaan, uskomuksiin sekä käsitykseen todellisuudesta. Tutkimusote on monimenetelmällinen ja yhdistää verkkoetnografista havainnointia ja laskennallisia menetelmiä. Aineisto on koottu Telegramista, Twitteristä sekä kahdelta herätyskristilliseltä verkkosivustolta neljästä uutistapahtumasta maaliskuun 2020 ja maaliskuun 2021 välillä.
Unfair Business Competition Practices In Tenders For Governmen Procurement
Authors: Rezky Yuanno , Gultom Elisatris 
Published: March 2023

Government procurement has an important role in the implementation of national development and is one of the means of driving the wheels of the economy for the welfare of the Indonesian people. Tender is a method used to carry out government procurement. In addition to aiming to obtain goods and services that meet the desired specifications at affordable prices, the tender aims to facilitate business actors participating in government procurement to compete fairly. However, in the implementation of tenders, it is unavoidable that there will be unfair business competition by means of tender conspiracy, so that it can be detrimental to the Government as the organizer and Business Actor participating in the tender. This is proven in the decisions of the Unfair Competition Supervisory Commission for the period 2019-2021 as many as 16 decisions regarding alleged violations of Article 22 of Law no. 5 of 1999 concerning the Prohibition of Monopolistic Practices and Unfair Business Competition. Through normative juridical research, this research examines the decision of the Unfair Competition Supervisory Commission for the 2019-2021 period.
Dynamics Of Marriage Age Limitation In Islamic Law And Positive Law
Authors: Muksalmina Muksalmina , Faisal Faisal , Afrizal Teuku Yudi , Ramziati Ramziati 
Published: March 2023

Islam does not limit the age for marriage but implicitly requires people who want to marry are physically and psychologically ready to get married to create a harmonious and peaceful family. Likewise, positive law in Indonesia, regarding the determination of the marriage age, aims to achieve a happy and blessed family. This study intends to examine legal benefits in a review of Islamic Law and Positive Law in Indonesia. This research employs library research by using primary and secondary data sources, and data analysis are normative qualitative. This study concludes that according to positive law, the maturity of the prospective bride and groom is determined according to the age limit for men and women, namely 19 years. Whereas in Islamic law what is very concerned is the maturity of the prospective groom in terms of economy, understanding of religion, and being physically and mentally healthy with the aim of not hurting women and creating a sakinah, mawaddah warahmah family (a blessed family).
PENGENDALIAN PERSEDIAAN GUNA MENGOPTIMALKAN PENJUALAN BERBASIS SISTEM INFORMASI PADA OUTLET GRIYA QURROTA
Authors: Sulistiyanti Febrina , Prasetyawati Meri , Puteri Renty Anugerah Mahaji 
Published: March 2023

Outlet Griya Qurrota merupakan salah satu distributor yang bergerak di bidang industri barang, seperti baju koko, baju gamis, peci. Masalah persediaan merupakan salah satu masalah yang harus diperhatikan oleh perusahaan, karena persediaan memiliki peran yang sangat penting dalam kelancaran operasional usaha. Outlet Griya Qurrota saat ini belum menerapkan pengendalian persediaan sehingga menyebabkan banyaknya overstock, sehingga persediaan barang yang dilakukan Outlet Griya Qurrota belum optimal. Oleh karena itu diperlukan pengendalian persediaan untuk menganalisis tingkat persediaan yang optimum.Tahapan peramalan dilakukan untuk mengetahui jumlah permintaan dengan menggunakan Software POM-QM for Windows. Metode pengendalian persediaan yang digunakan di Outlet Griya Qurrota yaitu Metode lot size diantaranya adalah EOQ (Economic Order Quantity), POQ (Periodic Order Quantity), metode PPB (Part Period Balancing). Perusahaan dalam pengendalian persediaan dibuatkan sistem informasi menggunakan database acces Hasil yang didapatkan bahwa pengendalian persediaan paling optimal untuk produk Gamis Remaja, NGS 099 MOON WHITE 3L, NGS 098 PURE BLACK 3L menggunakan metode EOQ (Economic Order Quantity). Dimana kuantitas pembelian sekali pesan Gamis Remaja, NGS 099 MOON WHITE 3L, NGS 098 PURE BLACK 3L secara berurutan sebanyak 190 pcs, 189 pcs, 172 pcs, dengan frekuensi pemesanan sebanyak 15 kali dalam setahun. Sehingga total biaya persediaan menggunakan metode EOQ otomatis lebih kecil yaitu sebesar Rp 11.979.132. Sistem informasi menggunakan Data Base Microsoft Access didapatkan Data barang dagang, Data kebutuhan Barang Dagang. Dengan adanya pengendalian persediaan dapat mengurangi overstock pada Outlet Griya Qurrota.
Articulación de la empresa y la universidad: experiencia de formación de profesores en Mecánica Automotriz
Authors: Arancibia Maria Luisa , Pino Díaz Benigno 
Published: March 2023

Desde el auge de la educación técnico profesional en los últimos años en Chile se hace necesario mejorar a formación de profesores vinculada con las necesidades del sistema productivo. Desde este contexto se analizó un programa de formación a profesores que se llevó cabo entre las empresas Citroën y Peugeot con una Universidad Chilena. Bajo un enfoque cualitativo se indagó sobre las percepciones de los profesores sobre la formación recibida. Se destacó la alta valoración en la actualización de conocimientos y en el uso de metodologías activas. La formación se centró en el trabajo colaborativo y la reflexión docente, elementos centrales para el mejoramiento de sus competencias profesionales contextualizadas a las necesidades de la empresa automotriz. Esta formación, con un enfoque activo, situó al estudiante en el centro del aprendizaje experiencial. Este tipo de formación es posible transferirla en otros campos de las ingenierías tanto en su valor pedagógico como disciplinar.
Penerapan Problem Based Learning Berbantuan Media Augmented Reality untuk Meningkatkan Hasil dan Kemandirian Belajar
Authors: Ekayogi I Wayan 
Published: March 2023

Penelitian ini bertujuan meningkatkan hasil belajar dan kemandirian belajar siswa dengan menerapkan model pembelajaran problem based learning berbantuan media augmented reality pada siswa kelas III SD Negeri 5 Sebatu. Penelitian ini adalah penelitian tindakan kelas yang dilaksanakan dalam dua siklus. Subjek penelitian adalah siswa kelas III yang berjumlah 24 siswa. Objek penelitian adalah model pembelajaran problem based learning berbantuan media augmetd reality, hasil belajar dan kemandirian belajar. Data dalam penelitian dikumpulkan dengan metode tes dan observasi. Data dianalisis dengan metode analisis statistik deskriptif dan deskriptif kuantitatif. Hasil analisis data menunjukkan persentase rata-rata hasil belajar aspek kognitif siswa pada siklus I adalah 67,08% (kategori sedang), meningkat menjadi 81,25% (kategori tinggi) pada siklus II. Hasil observasi kemandirian belajar siklus I pertemuan 1 terkategori “rendah” dan pertemuan 2 terkategori “Sedang”, sedangkan pada siklus II pertemuan 1 dan pertemuan 2terkategori “tinggi”. Dapat disimpulkan bahwa penerapan model pembelajaran problem based learning berbantuan media augmented reality dapat meningkatkan hasil belajar dan kemandirian belajarsiswa kelas III.
Assessment of heavy metal pollution in seawater, benthic flora and fauna and their ability to survive under stressors along the northern Red Sea, Egypt
Authors: Salah-Tantawy Ahmed , Mahdy Aldoushy , Dar Mahmoud A. , Young Shuh-Sen , Abdelreheem Abdelbaset M. A. 
Published: March 2023

The purpose of this study was to assess the north coasts of the Egyptian Red Sea, including Ras Gharieb, Hurghada, Safaga and Qusier, by evaluating the heavy metal pollution in seawater and benthic flora and fauna in the winter and summer of 2016. The concentrations of heavy metals (Fe, Mn, Zn, Cu, Ni, Cd and Pb) were analysed with an atomic absorption spectrophotometer. The results revealed that the Fe levels in the seawater ranged from 7.86 and 27.95 µg l-1, while the Zn concentrations fell between 1.83 and 5.63 µg l-1. In contrast, the recorded values of Mn, Cu, Ni, Pb and Cd in the seawater were minimal at the study sites. Regarding the biota samples, Porifera species were more adaptable than others to an accumulation of most metals in their tissues. Furthermore, seaweeds and seagrasses demonstrated remarkable adaptation in highly polluted regions, especially those with high turbidity, landfilling, sedimentation and high eutrophication rates – much more than the benthic fauna. Our research highlights the critical need for strict regulation of metal emissions in these coastal regions.
Determinan yang Memengaruhi Pemilihan Saluran Pemasaran Bunga Potong Krisan di Kabupaten Cianjur
Authors: Pratama Wisnu Ardi , Nurmalina Rita , Rosiana Nia 
Published: March 2023

Chrysanthemum is one of the main commodities in Cianjur Regency with 52% of the total chrysanthemum production in West Java Province. This study aims to analyze the determinants that influence the choice of marketing channels for chrysanthemum farmers in Cianjur Regency. Farmers have two choices of marketing channels to distribute their chrysanthemum cut flowers to final consumers, namely through collectors and also through wholesalers in Rawabelong Market. The most efficient marketing channel is channel 2, where farmers sell to wholesalers in the swamp belong before finally selling to the final consumers. The channel most chosen by farmers is channel 1, in which farmers sell their chrysanthemum cut flowers to the collectors and then from the collectors they sell them to wholesalers in Rawabelong Market, before being received by the final consumers. Respondents in this study were chrysanthemum cut flower farmers in two central districts, namely Cugenang District and Sukaresmi District, with a total of 60 farmers. This research was analyzed using binary logistic regression analysis by setting efficient marketing channels as the reference variable. The results of this study indicate that there are 6 factors that influence the choice of marketing channels, namely age (-), education (+), sales volume (+), price per bundle (+), capital bond (-) and transportation costs (+). Farmers prefer to sell to collectors (channel 1) because of the attachment of capital to collectors due to the lack of capital owned by farmers. Another factor is that as they get older, farmers tend to choose inefficient channels. In addition, the increasing length of education, sales volume, bond price, and transportation costs incurred, farmers tend to choose the efficient channel (channel 2). This research has policy implications for the regional government, especially the Cianjur Regency Agriculture Service, so that they can provide capital assistance in the form of seeds, fertilizers and financial so that farmers do not depend on village collectors for capital.