bluuebunny/crossref_metadata_2025 huggingface dataset:
Solubility of acetaminophen in the ethanol and glycerol mixtures at different temperatures
Authors: Gholizadeh Nafiseh , Hanaee Jalal , Rahimpour Elaheh , Jouyban Abolghasem
Published: September 2023

Acetaminophen solubility in the glycerol and ethanol mixture was determined by a simple shake-flask technique at different temperatures and fitted to some mathematical models and the models’ accuracy was investigated by the computation of the mean relative deviations. The densities of acetaminophen saturated mixtures were also studied by the Jouyban-Acree model. Moreover, the Gibbs and van’t Hoff equations were utilized to compute apparent thermodynamic parameters of the acetaminophen dissolving.
The Impact of Organizational Culture on Financial Performance of the Company
Authors: Savić Bojan , Jelić Sreten , Ostojić Vasili Vasilije
Published: September 2023

Organizational culture as a complex phenomenon has been subjected to numerous researches in the economic science and corporate practice, among which the analysis of the influence of organizational culture on financial performance has an important place, with the basic goal of understanding the link, but also potentially developing “the optimal culture" whose adoption would contribute to achieving optimal financial effects of economic entities. The subject of research of this paper is thus the connection between organizational culture and financial performance, while the goal is to understand the relationship as well as the nature of the influence. Therefore, organizational climate and subcultures were also considered as relevant aspects of organizational culture, but also as a basis for understanding the classifications, as well as its general influences on company business. Based on the review of the most important results of a significant number of researches on this topic, it was concluded that there currently isn’t a generally accepted view on the existence of a relationship between different types of organizational cultures and financial performances. Thus this paper was designed as a review of the topic and could be used as a theoretical basis for future research or for the development of alternative approaches in the analysis of causality between the observed phenomena.
Thinking about the language models and what we can do with them
Authors: Horváth Roman
Published: September 2023

Massive developments in technology, ICT, and artificial intelligence have been witnessed in recent years, with various projects emerging showing the apparent superiority of artificial intelligence over human intelligence, such as Deep Blue, AlphaGo, OpenAI Five, and GPT 3. In connection with them and with the favoured method of machine learning with deep learning, the term language model has appeared, which has the ambition to become the basis of general artificial intelligence (AGI). Critical responses, however, have been claiming that this is a dead end. An alternative view to these critical responses is attempted to be shown in this article, with consideration given as to whether the language model is just what critics consider it to be or whether something more can be sought behind it.
Study on the Behavior of Low-Voltage Cable Insulation Subjected to Thermal Cycle Treatment
Authors: Paun C. , Gavrila D. E. , Paltanea V. Manescu , Stoica V. , Paltanea G. , Nemoianu I. V. , Ionescu O. , Pistritu F.
Published: September 2023

The paper presents a study on the effects of thermal aging on a low-voltage cable. Cable samples with a length of 50 cm were subjected to thermal cycling from +140 °C to −20 °C in a climate chamber with controlled temperature. This treatment compares the short-term failure or the emergency overload of some cables under real operating conditions at low temperatures. The effect of the temperature cycle is investigated through electrical measurements such as dielectric spectroscopy, voltage response measurements, and mechanical measurements such as Shore D hardness investigation. The results revealed that the thermal cycles of accelerated aging caused the plasticizer to diffuse into the jacket and then be released into the environment. At the same time, the thermal shocks produced microcracks in the cable jacket, accelerating the removal of the plasticizer.
Labview for IoT Applications
Authors: Enache B.A. , Banica C.K. , Bogdan Ana Geroge
Published: September 2023

The Internet of Things (IoT) represents a paradigm shift, ushering in an era of technological innovation characterised by an array of novel services. IoT applications, with their potential to harmoniously merge the cyber and physical worlds, are nearly boundless. However, despite the extensive efforts put forth by standardisation bodies, alliances, industries, and the research community, a myriad of challenges remains to be addressed for IoT to reach its maximum potential. This paper presents a possible solution by merging the advantages of the LabView development medium with the lightweight communication provided by the MQTT protocol.
The Nexus Between Foreign Portfolio Diversification and Kinship
Authors: Socaciu Erzsébet-Mirjám
Published: September 2023

This study seeks to understand the effect of kinship tightness of a society on foreign portfolio diversification. Using data for 42 home investor countries and 44 destination countries for the period of 2004-2021, it is found that investors from more tight-knit kinship societies tend to have smaller proportion of equities invested abroad, thus holding sub-diversified portfolios. The enforcement of these tight kinship societies is based on shame and communal values fostering local monitoring practices which leads to the absence of cooperation and trust, thus reducing stock market participation. It is further shown that kinship tightness can be shaped by enhanced financial literacy, which in turn fosters international diversification. On the other hand, loose kinship societies can be viewed as trust-promoting alternative mechanisms where formal institutions are less effective.
PENGIMPLEMENTASIAN TEGANGAN KELUARAN PANEL SURYA DENGAN TOPOLOGI ZETA KONVERTER MENGGUNAKAN KONTROL LOGIKA FUZZY
Authors: Anggita Eriska , Denda Dewatama  , Mila Fauziyah
Published: September 2023

ABSTRACTS : The problem that arises when using solar panels is the unstable output due to the intensity of sunlight received. The greater the intensity of sunlight, the greater the voltage generated. One of the supporters of the application of SCC (Solar Charger Controller) is a dc-dc converter. Zeta converter is a DC-DC converter that can be used to regulate the voltage on solar panels to produce maximum power on solar panels. Therefore, a zeta converter circuit is used which is controlled by a solar charger controller using the fuzzy method. With this fuzzy method, it is expected to produce a stable output (14Volt). Fuzzy logic control with the mamdani method uses 5 error membership functions (NB, NK, Z, PK and PB) and 5 delta error membership functions (dNB, dNK, dZ, dPK and dPB), and 5 membership functions (K, AK, S, AB and B) output in the form of a single tone. The test results found the response signal value of fuzzy logic control, namely for response time (tr) = 2.266 seconds, overshoot = 0%, settling time (ts) = 5.074 seconds, and Error (ess) = 1%, from the parameters that have been applied and the results show that the voltage output value is stable and can run according to the design that has been made
ABSTRAK:
Permasalahan yang muncul saat menggunakan solar panel adalah output yang tidak stabil akibat intensitas sinar matahari yang diterima. Semakin besar intensitas sinar matahari, semakin besar tegangan yang dihasilkan. Salah satu pendukung penerapan SCC (Solar Charger Controller) adalah konverter dc-dc. Konverter Zeta adalah konverter DC-DC yang dapat digunakan untuk mengatur tegangan pada panel surya untuk menghasilkan daya maksimum pada panel surya. Oleh karena itu digunakan rangkaian zeta converter yang dikendalikan dengan solar charger controller dengan menggunakan metode fuzzy. Dengan metode fuzzy ini diharapkan dapat menghasilkan keluaran yang stabil (14Volt). Kontrol logika fuzzy dengan metode mamdani menggunakan 5 fungsi keanggotaan error(NB, NK, Z, PK dan PB) dan 5 fungsi keanggotaan delta error (dNB, dNK, dZ, dPK dan dPB), serta 5 fungsi keanggotaan (K, AK, S, AB dan B) keluaran berupa single tone. Hasil pengujian ditemukan nilai sinyal respon dari kontrol logika fuzzy yaitu untuk respon time (tr) = 2,266 detik, overshoot = 0 %, settling time (ts) = 5,074 detik, dan Error (ess) = 1%, dari parameter yang telah diterapkan dan menunjukkan hasil bahwa nilai keluran tegangan stabil dan dapat berjalan sesuai perancangan yang telah dibuat.
Steroid Minimization Protocols: A Nigerian Perspective
Authors:   Division Of Nephrology, Department Of Family And Specialty Medicine
Published: September 2023

Steroids form a major cornerstone in immunosuppressive therapy and have been in widespread use since their first discovery over seven decades ago in organ transplantation and various other clinical conditions.
Energy Deposition on Analogous Vehicle Panel: Thermal–Structural Response
Authors: Capra Bianca R. , Attwood Lily G.
Published: September 2023

A proof-of-concept experimental methodology and results are presented for the simulation of direct thermal energy deposition on a hypersonic vehicle panel analog. The methodology involved uniformly heating ceramic plates via joule heating with localized regions of thermal nonuniformity achieved via plate profiling. A parametric study was first performed to quantify the key parameters governing the level of simulated energy deposition achieved. The plate material, profile size, and amperage used to energize the plate were varied in this study, with a total of 108 cases analyzed. The overall plate thermal response, the [Formula: see text] achieved over the profile section, and the plate deflection were examined in detail. Configurations resulting in high overall plate temperatures with large [Formula: see text] in the profile section and appreciable deflection were then selected for benchtop testing. Wall temperatures in the range of 686–1144 K were achieved experimentally with peak [Formula: see text] T in the range of 46–427 K. One plate was visually observed to deflect on the order of 3 mm. The results from this demonstrate the suitability of the presented methodology for generating nonuniform, yet controlled temperature profiles on analogous vehicle panels for future shock-tunnel testing.
Basic Research Perspective on Quantum Information Science for the Aerospace Community
Authors: Metcalfe Grace D. , Tabakov Boyan , Nguyen Tristan , Lu Jiwei , Sayir Ali
Published: September 2023

Scientific and technological progress has repeatedly revolutionized society, from the invention of steam-power-driven machines that brought forth the Industrial Age to the development of the transistor that sparked the Information Age. As societies and economies become more connected through global communication networks and reliant on computational power, the demand for faster, more efficient, and secure information capabilities escalates commensurately. Enter Quantum Information Science (QIS) (QIS), a field founded on the physical laws of quantum mechanics that introduce extraordinary different and powerful paradigms for generating, manipulating, measuring, securing, and processing information. While many quantum effects are generally well understood and form the basis of widely exploited current technology, QIS is still a richly underexplored research area. This overview provides a basic research perspective on the foundational resources that empower QIS, the main challenges in exploiting QIS for practical applications, and the need for input from researchers outside quantum physics, such as those from the aerospace community, to stimulate new ideas and advance progress in QIS. This paper introduces key QIS concepts and continues with discussions on each of the following subareas: sensing, computation and algorithms, networks, and information security. The paper concludes with an outlook of the field as it relates to aerospace.
Ekstraksi Kalium Pada Abu Kulit Pisang Dengan Variasi Rasio Solvent Dan Media Pemanas
Authors: Silmi Fadian Farisan , Shintawati Shintawati , Variyana Yeni
Published: September 2023

Kulit pisang merupakan bahan yang dapat digunakan sebagai sumber kalium untuk pupuk organik. Pupuk kalium mempunyai peranan dalam meningkatkan produktivitas tanaman. Pisang berpotensi dijadikan sebagai sumber alkali. Dalam penelitian ini, ekstraksi kalium dilakukan dengan menggunakan abu kulit pisang. Metode yang digunakan adalah metode titrasi.Variabel yang diteliti adalah variasi jenis solvent. Penggunaan solvent yang digunakan adalah aquadest dengan perbandingan 1:6 dan 1:8. Ekstraksi yang dihasilkan masih mengandung sisa solvent. Proses ekstraksi dilakukan pada suhu 70°C selama 2-3 jam lalu setiap 20 menit diambil ekstraknya untuk dilakukan titrasi. Hasilnya pada penelitian ini didapatkan bahwa total massa kalium yang didapat paling besar adalah dengan komposisi F/V 1:8 dengan menggunakan media panas microwave sebesar 7,21 gram (kadar K terserap sebesar 15,21%).  Pada metode titrasi menggunakan pemanas microwave dinilai lebih mampu untuk meningkatkan nilai kadar K terserap pada ekstraksi kalium pada kulit pisang dibandingkan dengan media pemanas heater. Secara kuantitatif, ekstraksi menggunakan media panas microwave meningkatkan efisiensi sebesar 11-68% dibandingkan media pemanas heater. Peningkatan rasio F/V dari 1:6 ke 1:8 secara kuantitatif juga meningkatkan kadar K yang terserap sebanyak 38,4%.
The Effect of a Psychologically Informed Video Series to Treat Adolescents With Patellofemoral Pain: A Randomized Controlled Trial
Authors: Selhorst Mitchell , Hoehn Jessica , Schmitt Laura , Benedict Jason , Fernandez-Fernandez Alicia
Published: September 2023

OBJECTIVE: To test whether a series of brief, psychologically informed educational videos added to physical therapy improved function among adolescents with patellofemoral pain. The secondary aims were to assess pain and psychological beliefs.

DESIGN: A double-blinded randomized controlled trial.

METHODS: Sixty-eight adolescents with patellofemoral pain were randomly assigned to view brief, psychologically informed videos (n = 34) or control videos (n = 34) in addition to usual care physical therapy. The psychologically informed videos targeted fear-avoidance beliefs, kinesiophobia, and pain catastrophizing. The control videos conveyed basic anatomy, biomedical factors, and lower extremity mechanics. Outcomes were assessed at baseline, 3 weeks, 6 weeks (primary end point), and 3 months. The primary outcome was change in the Anterior Knee Pain Scale. Secondary outcomes were changes in Numeric Pain-Rating Scale and psychological beliefs (Modified Fear-Avoidance Beliefs Questionnaire-Physical Activity, Tampa Kinesiophobia Scale-11, and Pain Catastrophizing Scale-Child).

RESULTS: Adolescents in the psychologically informed group experienced significantly greater improvements in function (Anterior Knee Pain Scale mean difference = 8 points; 95% CI: 2.2, 13.2; P = .01) and pain (Numeric Pain-Rating Scale mean difference = 1.2 points; 95% CI: 0.1, 2.4; P = .04) at 6 weeks compared to the control group. The psychologically informed group had significantly greater reductions in psychological beliefs over time than the control group ( P≤.001; partial η2 = 0.32).

CONCLUSION: Incorporating psychologically informed education into physical therapy care improved function, pain, and psychological beliefs to a greater extent than the control group. J Orthop Sports Phys Ther 2023;53(10):634-642. Epub: 14 September 2023. doi:10.2519/jospt.2023.12041
Pulmonary paragonimiasis: Close mimic to pulmonary tuberculosis in endemic regions
Authors: Sharma Smita , Agrawal Gyanendra , Labru Vinay , Bhatt Anil Prasad , Ahmed Sharique , Bhatt Rinki
Published: September 2023

We, hereby, report a case of pulmonary paragonimiasis in a patient from an endemic region who was misdiagnosed with pulmonary tuberculosis as the clinical features of both diseases are the same. The subtle clue such as eosinophilia, food habits, and travel history can help us diagnose parasitic infections. Pulmonary paragonimiasis with coughing up rusty brown sputum is the most common presentation of the disease. Praziquantel is mainstay of treatment.

Highlight:

This case report is to draw the attention of the medical fraternity to the diagnosis of paragonimiasis which is endemic in Asian, African, and South American countries, whose diagnosis is often delayed or missed.
Azobenzenes can achieve near-infrared photocontrol in biological systems, with quantitative Z→E photoisomerization, via singlet manifold photoredox
Authors: Baumgartner Benedikt , Glembockyte Viktorija , Mayer Robert , Gonzalez-Hernandez Alberto , Kindler Robert , Valavalkar Abha , Wiegand Alexander , Müller-Deku Adrian , Grubert Lutz , Steiner Florian , Gross Christoph , Reynders Martin , Grenier Vincent , Broichhagen Johannes , Hecht Stefan , Tinnefeld Philip , Ofial Armin , Dietzek-Ivanšic Benjamin , Levitz Joshua , Thorn-Seshold Oliver
Published: September 2023

Here we develop a high-performance approach to photoswitching, by exploiting singlet manifold photoredox between azobenzenes and covalently attached auxiliary chromophores. This enables well-penetrating red/NIR light of 630-740 nm, to which azobenzenes usually do not respond, to perform Z→E photoisomerisation that is also 100% complete and highly photon-efficient. Crucially, this process is biocompatible, tolerates molecular oxygen, is photostable, and it avoids the drawbacks of triplet photochemistry; and substituent patterns of azobenzenes do not need re-engineering to harness it. We provide a library of redox potentials to predict photoredox performance, show its tolerance to linker length, and show that E→Z-promoting tetra-ortho-substitutions can be combined with photoredox to give fast and efficient bidirectional Z⇄E photoswitches for the visible/NIR. We then demonstrate the first use of single photon NIR light for reversible photopharmaceutical control in live cells under physiological conditions, by modulating G protein-coupled receptor activity. These stringent assays show singlet photoredox switching is a robust method for NIR photocontrol that should find high-performance applications in materials, in biophysics, and for "chemical optogenetics v2.0" in living systems.
Why Yttrium Hexaboride Exhibits a Much Higher Superconducting Tc than Near-Identical Lanthanum Hexaboride
Authors: Lavroff Robert , Munarriz Julen , Dickerson Claire , Munoz Francisco , Alexandrova Anastassia
Published: September 2023

Though YB6 and LaB6 share the same crystal structure, atomic valence electron configuration, and phonon modes, they exhibit drastically different phonon-mediated superconductivity. YB6 superconducts below 8.4 K, giving it the second-highest critical temperature of known borides. LaB6 does not superconduct until near-absolute zero temperatures, however. Though previous studies have quantified the canonical superconductivity descriptors of YB6’s greater Fermi-level (Ef) density of states and higher electron-phonon coupling (EPC), the root of this difference has not been assessed with full detail of the electronic structure. Through chemical bonding, we determine low-lying, unoccupied 4f atomic orbitals in lanthanum to be the key difference between these superconductors. These orbitals, which are not accessible in YB6, hybridize with pi B-B bonds and bring this pi-system lower in energy than the sigma B-B bonds otherwise at Ef. This inversion of bands is crucial: the phonon modes we show responsible for superconductivity cause the sigma-orbitals of YB6 to change drastically in overlap, but couple weakly to the pi-orbitals of LaB6. These phonons in YB6 even access an electronic-state crossing, indicating strong EPC. No such crossing in LaB6 is observed. Finally, a supercell (the M k-point) is shown to undergo a Peierls-like effect in YB6, introducing additional EPC.
Kinetic model of the glutamate neuron-astrocytic system. N-acetylaspartylglutamate and glutamate carboxypeptidase
Authors: Varfolomeev Sergey , Bykov Valeriy , Tsybenova Svetlana
Published: September 2023

Kinetic model of excitatory synapse functioning with glutamate and N-acetylaspartylglutamate (NAAG) as neurotransmitters in a three-component system regarding neuroglial astrocytic cells and the glutamate carboxypeptidase (GCPII) enzyme has been developed. The biphasic nature of the process providing excitation amplification within the modeling framework is shown. The role of excitatory synapse intensity has been investigated. The role of NAAG for enhancing neuronal connectivity and the realization of cognitive function is shown. The mechanism of cognition control by influencing on the efficiency of mGluR3 metabotropic receptor functioning is dis-cussed. The role of GCPII inhibition as a method of improving cognitive functions is studied. Dynamic features of the glutamatergic system behavior in neurodegenerative diseases (Alzheimer's disease, dementia), schizophrenia, traumatic brain injury, and epilepsy, as a part of development of the kinetic model are analyzed. The positive role of GCPII inhibition with the NAAG level increase as an effective approach to neuropathology treatment is shown.
Accelerating Alchemical Free Energy Prediction Using a Multistate Method: Application to Multiple Kinases
Authors: Champion Candide , Gall René , Ries Benjamin , Rieder Salomé R. , Barros Emilia P. , Riniker Sereina
Published: September 2023

Alchemical free-energy methods based on molecular dynamics (MD) simulations have become important tools to identify modifications of small organic molecules that improve their protein binding affinity during lead optimization. The routine application of pairwise free-energy methods to rank potential binders from best to worst is impacted by the combinatorial increase of calculations to perform when the number of molecules to assess grows. To address this fundamental limitation, our group has developed replica-exchange enveloping distribution sampling (RE-EDS), a pathway-independent multistate method, enabling the calculation of alchemical free-energy differences between multiple ligands (N > 2) from a single MD simulation. In this work, we apply the method to a set of four kinases with diverse binding pockets, and their corresponding inhibitors (42 in total), chosen to showcase the general applicability of RE-EDS in prospective drug design campaigns. We show that for the targets studied, RE-EDS is able to model up to 13 ligands simultaneously with high sampling efficiency, leading to a substantial decrease in computational cost when compared to pairwise methods.
Perspectives on dual-purpose functional nanomaterials for detecting and removing fluoride ion from environmental water
Authors: Dhiman Sukhvinder , Kumar Solanki Arun , Nag Kritika , Jayamurugan Govindasamy
Published: September 2023

Fluoride (F–) is a unique analyte because when in small quantities, it is beneficial and harmful when in larger or negligible quantities, leaving it essential for dual-purpose detection and removal from a water sample to prevent fluoride-caused health risks. F– detection and removal using organic molecules and hybrid materials are extensively reported in the literature, but very few reports discuss dual-purpose detection and removal. Functional nanomaterials (FNM) based on nanoparticles, metal-organic frameworks, and carbon dots conjugated with fluorophore moiety are largely used for these purposes. Functional groups on nanomaterial surfaces exhibited various interactions such as agglomeration, electrostatic, hydrogen bonding, ion exchange, coordination and π-π stacking interactions, enabling dual-purpose detection and removal of F–. These materials offer unique properties such as tunable pore structure, size, and morphology coupled with large surface area and high thermal/chemical stability. Further, this perspective review discusses prospects for sustainable technologies and describes the advantages and disadvantages of using FNM based on its optical properties for detection and removal efficiency. We believe this is the first account that summarizes the single FNM that can be used for simultaneously the selective detection of F– in aqueous media and its efficient removal.
Transition-metal free boron triiodide-mediated reduction of nitroarenes from simple borohydride reagents
Authors: Williams Florence , Corkovic Andrej , Chiarella Thomas
Published: September 2023

The reduction of nitroarenes using KBH4 and I2 is described. KBH4 and I2 are used to generate BI3 in situ, which was shown to be the active reductant. Conditions were optimized for BI3 generation, and then applied to a wide range of nitroarene reductions, including traditionally challenging substrates. The method constitutes a practical nitroarene reduction which produces low toxicity byproducts boric acid and potassium iodide upon workup.
Manipulating Stereoselectivity of Parahydrogen Addition to Acetylene to Unravel Interconversion of Ethylene Nuclear Spin Isomers
Authors: Sviyazov Sergey V. , Babenko Simon V. , Skovpin Ivan V. , Kovtunova Larisa M. , Chukanov Nikita V. , Stakheev Alexander Yu. , Burueva Dudari B. , Koptyug Igor V.
Published: September 2023

Symmetric molecules exist as distinct nuclear spin isomers (NSIMs). A deeper understanding of their properties, including interconversion, requires efficient techniques for NSIMs enrichment. Selective hydrogenation of acetylene with parahydrogen (p-H2) was used to achieve the enrichment of ethylene NSIMs and to study their equilibration processes. The effect of stereoselectivity of H2 addition to acetylene on the imbalance of ethylene NSIMs was experimentally demonstrated by using different heterogeneous catalysts (an immobilized Ir complex and two supported Pd catalysts). The interconversion of NSIMs with time during ethylene storage was studied with NMR spectroscopy by reacting ethylene with bromine water which renders the p-H2-derived protons in the produced 2-bromoethan(2H)ol (BrEtOD) magnetically inequivalent, thereby revealing the non-equilibrium nuclear spin order of ethylene. A thorough analysis of the shape and transformation of the 1H NMR spectra of hyperpolarized BrEtOD allowed us to reveal the initial distribution of produced ethylene NSIMs and their equilibration processes. Comparison of the results obtained with different catalysts was key to properly attributing the derived characteristic time constants to different NSIMs interconversion processes: ~ 3-6 s for interconversion between NSIMs with the same inversion symmetry (i.e., within g or u manifolds) and ~ 1700-2200 s between NSIMs with different inversion symmetries.
SYNTHESIS OF ALUMOSILICATE COMPOSITES WITH MAGNETIC PROPERTIES
Authors: Кислица О.В. , Манаенков О.В. , Кузнецов Д.С. , Шашуев А.А. , Матвеева В.Г.
Published: September 2023

В данной работе предложена методика синтеза магнитных материалов на основе коммерческих цеолитов типа ZSM-5 и оксидной формы алюмосиликата SIRALOX 40/490. Синтезированные композиты были охарактеризованы различными физико-химическими методами. В частности, показано, что при введении в состав сорбентов наночастиц магнетита происходит блокировка кислотных центров, а удельная площадь поверхности и характер пористости исходных сорбентов не претерпевают критических изменений в ходе синтеза, что позволяет предположить также незначительное изменение их сорбционных свойств. Методом электронной микроскопии определён средний размер частиц магнетита, сформированных в порах сорбентов – в пределах 55- 65 нм. Высокое содержание в композитах железа (в составе магнетита) обусловливает их хорошие магнитные характеристики, что позволяет быстро и в полном объёме отделять их от жидкой фазы посредством внешнего магнитного поля. Синтезированные магнитные композиты могут быть использованы в качестве сорбентов, или носителей для синтеза гетерогенных каталитических систем.

In this work, we propose a procedure for the synthesis of magnetic materials based on commercial zeolites of the ZSM-5 type and the oxide form of aluminosilicate SIRALOX 40/490. The synthesized composites were characterized by various physicochemical methods. In particular, it has been shown that the introduction of magnetite nanoparticles into the composition of sorbents results in the blocking of acid sites, and the specific surface area and porosity of the initial sorbents do not undergo critical changes during synthesis, which also suggests a slight change in their sorption properties. Using electron microscopy, the average size of magnetite particles formed in the pores of sorbents was determined to be within 55-65 nm. The high content of iron in composites (in the composition of magnetite) determines their good magnetic characteristics, which allows them to be quickly and completely separated from the liquid phase by means of an external magnetic field. The synthesized magnetic composites can be used as sorbents or carriers for the synthesis of heterogeneous catalytic systems.
KENT DIŞI YERLEŞİM NOKTALARINDA KARGO DAĞITIMI İÇİN GEZGİN SATICI PROBLEMİ ÇÖZÜMÜ
Authors: GÖNCÜ Kadir Kaan , ÇETİN Onur
Published: September 2023

Son yıllarda ticaret ve e-ticaretteki artış ile birlikte kargo taşımacılığı ile ilgili de talep artışı gözlemlenmiştir. Kargo dağıtımında depodan çıkan araç önceden belirlenmiş talep noktalarına teslimat yaparak tekrar depoya dönmektedir. Bu dağıtım süreci klasik bir gezgin satıcı problemidir (GSP). Kargo taşımacılığı problemi GSP olarak modellenebilir ve GSP ile ilgili geniş bir literatür bulunmaktadır. Bununla birlikte kırsal kargo dağıtımı ile ilgili çalışma sayısı sınırlıdır. Bu çalışmada bir kargo firmasının kırsal alandaki kargo dağıtımı incelenmiştir. Kırsal alandaki kargo dağıtımı GSP olarak modellenmiştir. Problem farklı sezgisel yöntemler ile çözülmüştür. Bunun yanında kırsal alanda kargo dağıtımı için alternatif yöntemler tartışılmıştır.
SANAT PAZARLAMASI ve KÜLTÜR PAZARLAMASI ÇALIŞMALARININ BİLİMSEL HARİTALAMA YÖNTEMİ ile İNCELEMESİ: BİBLİOMETRİK ANALİZ (2000-2023)
Authors: KAYAPINAR Özgür , KAYAPINAR Umut
Published: September 2023

Sanat üretilebilen ve tüketilebilen bir olgudur. Sanat alınıp satılabilen, mülkiyetine geçtiği kişi veya kurumlara itibar veren, değerlenebilen bir olgu olarak piyasasını konumlandırmış bir meta olarak ele alınabilmektedir. Sinema, müzik, tiyatro gibi fonetik sanat alanlarının zaten piyasalarda kendine yer edinmiş bir yapısı söz konusudur. Bunun yanında özellikle çağdaş sanat piyasayı sayesinde plastik sanatlar da bir pazar ve piyasa sahibi olmuştur. Bu doğrultuda çalışmada, kültür ve sanat pazarlaması üzerine yapılmış olan literatürde yer alan 2000-2023 yılları arasında yayınlanan yayınların bir haritasının ortaya konulmasının amaçlanmıştır. Çalışmanın örneklemini Web of Science (WOS) ve Scopus indeksleme platformlarında yer alan 1309 yayından oluşturmaktadır. Elde edilen veriler Bibliometrix R Paket programı sayesinde analiz edilmiştir. Bibliyometrik analiz çerçevesinde öncelikle verilerin genel görünümlerini ortaya koymak için bir tanımlayıcı analiz gerçekleştirilmiştir. Daha sonra biraz daha keşifsel çıkarımlarda bulunmak amacı ile yayınların bulunduğu veri setine atıf analizi, ortak atıf analizi, ortak kelime ve ortak yazar analizi uygulanmıştır. Ortak kelime analizi sonucunda anahtar kelimelerin 19 farklı temada toplandıkları tespit edilmiştir. Bu temalarda yoğunluğun en fazla olduğu tema 7. sırada yer alan “kültür” temasında kültür (68) kelimesi olduğu gözlenmiştir. Ortak atıf analizinde Johnson ve Becker’in birlikte diğer yazarlara göre daha fazla atıfta bulunulduğunu göstermektedir. Ortak yazar analizini anahtar kelimeler açısından değerlendirildiğinde dört farklı anahtar kelime kümesinde toplandıkları görülmüştür. Bu kümeler: performans sanatları, sanatlar, müzik festivalleri ve markalamadır.
Financial Statements Fraud of Banks and other Financial Institutions in Nigeria
Authors: Gbadebo Adedeji Daniel , Akande Joseph Olorunfemi , Adekunle Ahmed Oluwatobi
Published: September 2023

Purpose: There is evidence that managers engage in opportunistic practice to manipulate reported performance to attract unsuspecting investors. This paper seeks to detect the likelihood of manipulations on the financial reports of financial service firms (banks and other financial institutions) as well as to identify the financial indicators that are the likely predictors of the probability of manipulations in Nigeria.
 
Theoretical framework: The M-score models, from Beneish (1999), are employed as theoretical basis for the paper. The model use financial ratios computed using accounting data to confirm the probability that firms’ reported earnings are manipulated.
 
Design/Methodology/Approach: The study uses data from the Nigerian Exchange Group, from 2010 to 2019 to compute M8/M5-scores and classify firms into likely manipulators and unlikely manipulators. In addition, a probit regression model was applied to establish financial ratios that significantly predict the likelihood of FSF amongst the financial firms.
 
Findings: The results based on M8 (M5)-score indicate that 26.67% (23.33%) of firms likely manipulate financial books and exhibit the possibility of FSF. In addition, only sales in receivable, sales growth, depreciation expenses, leverage and accruals to assets ratios are found to be (positive) significant predictors of the probability of manipulations.
 
Research, Practical & Social implications: The implication of the outcome is that subjecting financial statements to empirical and statistical scrutiny should not be ignored because it would detect and reduce associated risks to manipulations. Therefore, more regulatory interventions and empirical auditing of reports are needed to ensure their readability and reliability to the investors.
 
Originality/Value: The study offers a novel and first evidence, based on Beneish M-score, to scrutinise reports of financial firms in Nigeria. The evidence ensures quality reporting of the financial statements in order to credibility as well as protect the integrity of the capital markets.
uso de telas, o autismo virtual e os jogos
Authors: Prioste Cláudia , Rogério Maria Sylvia Celli , Firmino Mariana Bragança , Palaro Simone Martins de Caires
Published: September 2023

Este artigo visa discutir algumas pesquisas recentes sobre o uso excessivo de telas no desenvolvimento psicossocial de crianças e jovens, com ênfase especial nos jogos violentos, utilizando o jogo “Free Fire” como exemplo. Além disso, busca-se analisar as polêmicas relacionadas ao termo “autismo virtual”. A análise realizada identificou evidências de que o uso excessivo de telas por crianças está correlacionado ao aumento de problemas na linguagem, sociabilidade e cognição. No que diz respeito aos jogos violentos, destacam-se os riscos associados ao aumento de expressões agressivas, afetos negativos, diminuição da empatia e comportamentos pró-sociais. No entanto, em relação à correlação causal entre o uso excessivo de telas e o Transtorno do Espectro Autista (TEA), não existem evidências que sustentem ou refutem tal correlação. Portanto, o uso do termo “autismo virtual” pode induzir a interpretações equivocadas. Nesse contexto, espera-se que estas reflexões contribuam para aumentar a conscientização sobre a importância de políticas públicas e de uma educação crítica em relação às mídias.
Düşük Maliyetli GNSS Gözlemlerine Dayalı Gerçek-Zamanlı Hassas Nokta Konum Belirleme (RT-PPP) Tekniğinin Performansının Değerlendirilmesi ve Çoklu-GNSS Gözlemlerinin Katkısı
Authors: BEZCİOĞLU Mert
Published: September 2023

Bu çalışma, düşük maliyetli GNSS (Küresel Uydu Navigasyon Sistemi) gözlemlerine dayalı RT-PPP (Gerçek-Zamanlı Hassas Nokta Konum Belirleme) tekniğinin konum belirleme performansının araştırılmasını ve yönteme çoklu-GNSS gözlemlerinin katkısını sunmaktadır. Çalışmada, iki adet düşük maliyetli u-blox ZED-F9P alıcısı ve ANN-MB-00 anteni kullanılarak statik ve kinematik modda iki farklı deney gerçekleştirilmiştir. Gerçekleştirilen iki deney setinde de GPS (Küresel Konum Belirleme) ve GPS+Galileo gözlemlerine dayalı olarak IGS03 akışından elde edilen gerçek-zamanlı hassas yörünge ve saat düzeltmelerinden elde edilen ürünlerle RT-PPP çözümleri gerçekleştirilmiş ve bu sonuçlar, GPS+Galileo gözlemlerine dayalı RTK (Gerçek-Zamanlı Kinematik) verileri ile karşılaştırılmıştır. Statik modda gerçekleştirilen deneyin bulguları, çoklu-GNSS gözlemlerinin sadece-GPS gözlemlerine kıyasla yaklaşık olarak 30 dakika daha erken yakınsadığını ve sağa, yukarı ve h bileşenleri için sırasıyla 3, 11 ve 6 cm mertebesinde daha doğru konum bilgisi sağladığını açıkça göstermektedir. Kinematik deney sonuçları ise çoklu-GNSS gözlemlerinin tek sisteme kıyasla elde edilen konum doğruluğunu yatay ve düşey bileşenler için sırasıyla %33 ve %25 oranında iyileştirdiğini ifade etmektedir. Ancak, her iki deneyden elde edilen sonuçların dm mertebesinde olduğu göz önüne alındığında, düşük maliyetli GNSS gözlemlerine dayalı RT-PPP tekniğinin yüksek doğruluk gerektiren jeodezik uygulamalarda yeterli olmayacağını, buna karşılık navigasyon uygulamaları için yeterli doğruluk sağladığı açıktır.
Dijital ikizlerin geliştirilmesinde fotogrametrinin kullanımı ve artırılmış gerçeklik ile görselleştirilmesi
Authors: YİĞİT Abdurahman Yasin , UYSAL Murat
Published: September 2023

Dijital ikiz oluşturmada en önemli kavram, objenin gerçekliği ne kadar iyi temsil ettiği ve güncellenebilir olmasıdır. Fotogrametri yöntemi bu noktada fotoğraflardan 3B modeller oluşturma yöntemi olduğu için gerçekliği en iyi temsil eden yöntemlerden biridir. Fotogrametri yöntemiyle bir nesnenin farklı açılardan birden fazla fotoğrafı çekilerek nesnenin 3B modeli oluşturulabilir ve bu modeller daha sonra dijital ikiz oluşturmak için kullanılabilir. Çalışmanın ana odak noktası fotoğraf verilerinden üretilen 3B fotogrametrik verilerin dijital ikiz olarak işlev görmesi için bir temsilin temel gereksinimlerini formüle etmek ve bu temel gereksinimlerin bir prototip dijital ikizde nasıl uygulanabileceğini göstermektir. Bu amaçlar doğrultusunda farklı boyutlarda ve kompleks yapıdaki üç adet objenin fotogrametri yöntemi ile dijital ikizi oluşturulmuştur. Son olarak üretilen dijital ikizin görselleştirilmesi ve kullanıcıya mobil veya WEB ortamında erişiminin kolay bir şekilde artırılmış gerçeklik olarak sunumu gerçekleştirilmiştir.
The Synthesis of a Controlled Release System Based on MMT Added IPN Type Hydrogels
Authors: SEVER Evrim , PULAT Mehlika
Published: September 2023

The purpose of our study is to develop a controlled Naproxen releasing system for anti-inflammatory, analgesic treatments. Interpenetrating polymer network (IPN) type of hydrogels were obtained by using natural polymers alginate and gelatin. The hydrogels were prepared by combining Alginate and Gelatin in the presence of Glutaraldehyde as crosslinker of gelatin. Montmorillonite (MMT) clay was used as a nano-dimensioned and layered dopant. The prepared hydrogels were characterized via hydrogel formation, swelling/degradation measurements, Fourier Transform Infrared Spectroscopy (FT-IR), and Scanning Electron Microscopy (SEM) analysis. Swelling tests presented that the presence of MMT in the polymer network decreases the swelling. From the SEM micrographs, it can be seen that MMT added hydrogel has smaller and more pore than the other. The release studies of Naproxen were maintained in Britton-Robinson Buffer (BRB) solution (pH=7.4) and at 37°C. It is observed that the swelling profiles of the hydrogels were compatible with the releasing behaviors. The release kinetics of Naproxen are match the Fickian diffusion.
Penyuluhan dan Praktek Penggunaan Internet dan Media Sosial Sehat, Aman dan Positif Bagi Pelajar SMKN 1 di Kota Singkawang
Authors: Imansyah Fitri , Arsyad Iqbal , Ratiandi Redi , Marpaung Jannus , Sirait Bonar
Published: September 2023

Tujuan sosialisasi penggunaan internet dan media sosial sehat, aman dan positif adalah proses edukasi dengan memberikan pemahaman yang cukup mengenai penggunaan internet secara bijak sehingga memaksimalkan dampak positif dan meminimalkan dampak negatif dari berinternet, sehingga tercipta siswa cerdas dan produktif. Budaya INSAN (internet sehat dan aman) ditujukan dengan melibatkan peran keluarga, orang tua, guru, dosen, komunitas, asosiasi, lembaga pelatihan, anak-anak, remaja, dan siswa didik. Program ini bertujuan meningkatkan pengetahuan pelajar SMK, mengenai pemanfaatan internet dan media sosial secara bijak. Hasil kegiatan ini adalah tersusun materi sosialisasi, baik berupa leaflet, brosur, makalah, maupun dalam bentuk media presentasi dalam bentuk modul sosialisasi, yang berisikan materi sosialisasi tentang praktek penggunaan internet sehat, aman dan positif bagi pelajar SMK yang dapat digunakan sebagai materi untuk melakukan sosialisasi serupa di lokasi lain yang belum terjangkau oleh kegiatan sosialisasi ini. Peserta sosialisasi mendapatkan banyak manfaat dari kegiatan  ini antara lain: Mengetahui informasi   tentang   dampak   penggunaan   internet   sehingga   dapat mengetahui manfaat internet dan mengetahui juga sisi negatifnya; Dapat mengembangkan potensi diri melalui adanya Internet; Dengan adanya sosialisasi ini, diharapkan dapat terhindar dari bahaya sisi negatif internet; Mengetahui tentang teknik dasar dalam pencegahan dan penanggulan konten negatif di internet; Mengetahui tips-tips untuk berinternet dan bermedia sosial dengan sehat, aman dan produktif; Semakin aware (peduli) dalam pemanfaatan internet dan sosial media secara bijak dan sesuai dengan usianya.
Pengembangan Teknologi Perikanan Dalam Usaha Peningkatan Kapasitas Ikan Tangkapan Menggunakan Pembangkit Listrik Tenaga Surya
Authors: Imansyah Fitri , Arsyad Iqbal , Marpaung Jannus , Hiendro Ayong , Sujana Ivan
Published: September 2023

Penggunaan energi listrik sebagai sumber pencahayaan pada bagan tancap sangat penting dalam penangkapan ikan. Pencahayaan/atraktor cahaya pada bagan bertujuan mengumpulkan ikan karena memiliki sifat fototaksis positif. Ikan yang bersifat fototaksis positif akan berkumpul di daerah cahaya lampu, sehingga memudahkan nelayan untuk menangkap ikan. Penggunaan lampu celup bawah air (Lacuba) sebagai alat bantu untuk penangkapan ikan sangat baik untuk diterapkan pada model penangkapan ikan. Lacuba memerlukan sumber energi supaya bisa memancarkan cahaya di dalam air laut. Sumber energi berasal dari baterai, namun baterai memiliki keterbatasan dalam menyalurkan energi ke lampu, untuk itu diperlukan sumber tenaga listrik untuk memulihkan tenaga baterai. Teknologi Pembangkit Listrik Tenaga Surya (PLTS) praktis dalam memulihkan tenaga baterai adalah pemanfaatan sumber energi dari sinar matahari yang dikonversi menjadi arus listrik oleh panel surya. Panel surya akan mengisi baterai saat siang hari, namun pada malam hari baterai bekerja menyalurkan daya listrik ke Lacuba. Kegiatan pengabdian ini bertujuan untuk mendemonstrasikan teknologi PLTS dan Lacuba pada bagan tancap sebagai penyedia sumber listrik untuk pencahayaan dalam menangkap ikan, meningkatkan pengetahuan melalui pelatihan penggunaan teknologi panel surya, serta menyusun strategi keberlanjutan kegiatan melalui optimalisasi peran mitra serta kerjasama dengan para nelayan di kawasan pesisir Kecamatan Kakap, Kabupaten Kubu Raya. Metode kegiatan yang dilakukan berupa demonstrasi dengan melakukan instalasi panel surya dan pemasangan baterai lengkap dengan kontroler serta Lacuba. Arus listrik yang tersimpan dalam baterai disambungkan ke Lacuba yang kemudian digunakan pada malam hari oleh nelayan pada bagan masing-masing. Penerapan perangkat teknologi panel surya dan peralatan pendukung lainnya telah dilakukan, dipahami cara kerjanya dan digunakan secara langsung oleh kelompok mitra nelayan yang berafiliasi pada Koperasi Kelautan dan Perikanan Indonesia (KKPI). Keberlanjutan kemitraan dengan KKPI dapat dilakukan melalui kerjasama dengan pihak lainnya untuk semakin meningkatkan hasil tangkapan ikan dengan teknologi ramah lingkungan.
Self Talk Positive dalam Menurunkan Tingkat Kecemasan dan Stres Garda Terdepan Penanganan Covid-19
Authors: Kirana Wahyu , Litaqia Wulida
Published: September 2023

Tingginya angka penyebaran Covid-19 menimbulkan berbagai dampak salah satunya adalah dampak psikologis. Dalam wabah apa pun, wajar jika orang merasa tertekan dan khawatir. Respons umum dari orang-orang yang terdampak (baik secara langsung atau tidak). Kedaruratan memang selalu membuat tertekan, tetapi faktor penyebab tekanan khusus wabah Covid-19 dapat mempengaruhi masyarakat, seperti risiko terinfeksi dan menginfeksi orang lain. Respon psikologis berupa cemas dan stres kerap dialami oleh tenaga kesehatan yang berada digarda terdepan penanganan pandemi saat ini. Berkaitan dengan pandemic Covid-19 yang terjadi saat ini dan semakin mengalami peningkatan, ada beberapa intervensi yang dapat dilakukan khususnya kepada para garda terdepan dalam mengatasi kecemasan dan stres akibat pandemic Covid-19. Salah satunya yaitu dengan melakukan self talk positive. Self talk positive adalah intervensi dalam menghilangkan stres dan melibatkan fokus pada pernyataan positif daripada negative. Strategi ini dapat digunakan untuk membantu melewati situasi yang memicu kecemasan.
Pendampingan Masyarakat dalam Pemanfaatan Nipah sebagai Olahan Pangan di Desa Sungai Kupah, Kuburaya
Authors: Lestariningsih Siti Puji , Manurung Togar Fernando , Destiana Destiana
Published: September 2023

Hutan mangrove Sungai Kupah didominasi oleh tanaman nipah yang buahnya melimpah sepanjang tahun, tetapi belum diolah secara optimal. Selain nipah, kelapa dan gula merah merupakan komoditi yang dihasilkan di desa tersebut. Ketiga bahan tersebut merupakan bahan utama pengolahan dodol nipah yang dapat menjadi produk lokal bernilai ekonomi. Pelatihan dodol nipah diikuti oleh 30 peserta melalui tahapan sosialisasi, praktek pembuatan dodol nipah, dan evaluasi hasil kegiatan. Sosialisasi untuk mengenalkan khasiat dan pengolahan buah nipah, sedangkan evaluasi menggunakan instrumen kuesioner. Pengolahan dodol dilakukan secara berkelompok, anggota 6 orang tiap kelompok. Pemahaman peserta meningkat dengan adanya kegiatan pelatihan, terutama tentang olahan dodol. Pengolahan dodol memerlukan waktu 2,5 jam dengan api kecil, hasilnya tekstur dodol lebih kenyal. Hasil produk diberi label Dodol Nipah Kupah yang dikemas dengan variasi kecil dan besar.
Sosialisasi Politik Digital Indonesia untuk Menangani Kasus Perdagangan Manusia di Perbatasan Antar Negara
Authors: Elyta Elyta , Usmulyadi Syarif , Nuzulian Ully , Lutfie Ratu Zahirah , Lukitowati Suci
Published: September 2023

Tujuan Pengabdian Pada Masyarakat (PPM) yaitu ingin melakukan sosialisasi politik digital indonesia untuk menangani kasus perdagangan manusia di Perbatasan Sajingan Besar, Kabupaten Sambas Kalimatan Barat. Metode kegiatan yang dipergunakan adalah berbentuk dialog tanya jawab antara pemateri dan peserta sebanyak 42 orang diantaranya: Tokoh Masyarakat, Tokoh Pemuda, Aparatur Desa, beserta Siswa SMA. Kegiatan sosialisasi telah dilaksanakan selama 3 bulan terhitung dari September 2021 sampai dengan November 2021. Hasil dan pembahasan dari PPM ini  adalah : (1) Tim Pelaksana PPM sudah memberikan materi mengenai makna perdagangan manusia di Perbatasan Sajingan Besar, hasil dari sosialisasi mengenai makna perdagangan manusia di Perbatasan Sajingan Besar dari total 42 orang, Terlihat sebanyak 33% atau sebanyak 14 orang peserta PPM telah sangat paham mengenai makna perdagangan manusia. Selanjutnya peserta PPM yang telah paham sebesar 52% atau sebanyak 22 orang.(2) Sudah memberikan materi mengenai pemanfaatan politik digital melalui aplikasi Safe Travel, Sistem Informasi Pekerja Migran Indonesia (SIPMI), Jendela TKI, dalam menangani kasus perdagangan manusia di Perbatasan Sajingan Besar peserta PPM yang telah paham sebesar 43% atau sebanyak 18 orang. (3) Sudah memberikan materi mengenai pemanfaatan politik digital melalui Media Sosial Kementrian Luar Negeri, Media Sosial Kemnaker yaitu Instagram & Twitter, dalam menangani kasus perdagangan manusia di Perbatasan Sajingan Besar. Peserta PPM sebanyak 29% atau sebanyak 12 orang peserta PPM telah sangat paham mengenai pemanfaatan media sosial Instagram & twitter dalam menangani kasus perdagangan manusia di Perbatasan Sajingan Besar. Selanjutnya peserta PPM yang telah paham sebesar 48% atau sebanyak 20 orang.