bluuebunny/crossref_metadata_2025 huggingface dataset:
Perbandingan efektivitas terapi injeksi intra-artikular HA, LP-PRP, dan LR-PRP terhadap keluhan nyeri lutut pada osteoarthritis: meta-analysis
Authors: Agatha Laurentia Avelia , Adisuhanto Monica , Pelealu James Meinheart , Santi Bryany Titi , Rusli Irene
Published: September 2024

Pendahuluan: Osteoarthritis dapat mengurangi kualitas hidup seseorang akibat nyeri dan keterbatasan gerak. Pengobatan OA menggunakan obat analgesik dan antiinflamasi berisiko mengakibatkan perdarahan pada lambung. Terapi invasif dengan penyuntikan IA menjadi pilihan yang baik namun karena risiko akibat penyuntikan dan biaya yang cukup mahal sehingga perlu melakukan meta-analisis untuk menentukan mana yang paling efektif mengurangi nyeri pada pasien KOA. Hasil penelitian ini diharapkan dapat membantu pemilihan terapi injeksi intra artikular yang lebih efektif dan tepat dalam memberikan terapi pada pasien KOA.
Metode: Pencarian artikel RCT yang menilai efektifitas IA PRP (LP-PRP atau LR-PRP) dengan IA-HA, terhadap nyeri dengan skor Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC)  sebagai alat ukur, dari Pubmed, Cochrane, Proquest, ScienceDirect, Clinical Key, dan EBSCO host. Artikel dinilai kualitasnya dengan skala JADAD. Lalu yang terpilih akan dilakukan meta analisis. Alur pemilihan artikel akan disajikan dalam PRISMA flow chart.
Hasil: Enam penelitian memenuhi kriteria kelayakan yang dipisahkan berdasarkan variabelnya, leukocyte-poor platelet rich plasma dan HA dan leukocyte-rich platelet rich plasma dan HA. Terdapat perbedaan rerata skor WOMAC yang signifikan pada LR-PRP dibandingkan dengan HA (mean difference -5,24) dan LP-PRP dibandingkan dengan HA (mean difference -3,82).
Simpulan: Hasil meta-analisis ini dapat disimpulkan bahwa terapi injeksi intra-artikular dengan LR-PRP lebih unggul daripada LP-PRP dan HA pada 6 dan 12 bulan, terutama untuk nyeri lutut simtomatik.
ANALISIS KEKUATAN PEMBUKTIAN KESAKSIAN ANAK DENGAN DISABILITAS INTELEKTUAL SELAKU KORBAN KEJAHATAN SEKSUAL
Authors: Grace Andrea Anastasya , Feronica
Published: September 2024

Jurnal ini pada dasarnya membahas mengenai bagaimana kesaksian dari seorang anak dengan disabilitas intelektual yang merupakan korban dari suatu tindak pidana kejahatan seksual digunakan sebagai alat bukti di persidangan. Kejahatan seksual merupakan tindakan yang melanggar hak asasi manusia, terlebih apabila dilakukan terhadap seseorang yang lebih rentan untuk dijadikan sasaran akibat keterbatasannya, seperti anak penyandang disabilitas intelektual. Oleh karena itu, dibutuhkan perlindungan hukum yang baik terhadap korban kejahatan seksual yang merupakan anak dengan disabilitas intelektual. Terutama pada saat persidangan karena masih terdapat penegak hukum yang meragukan keterangan korban oleh karena keterbatasan dan juga umurnya, hal tersebut juga berdampak pada keyakinan hakim. Kemudian diciptakan Undang-Undang Tindak Pidana Kekerasan Seksual yang membentuk ketentuan bahwa keterangan saksi korban anak dengan disabilitas intelektual kekuatan pembuktiannya tetap setara dengan keterangan korban lainnya karena dalam hal ini korban akan dibantu oleh Pendamping yang ahli dan memahami korban serta sudah disumpah, dan tentunya ditambahkan juga dengan satu alat bukti lainnya yang sah serta keyakinan hakim sebagaimana diaturkan dalam Pasal 183 Kitab Undang-Undang Hukum Acara Pidana terkait ketentuan minimum alat bukti. Metode penelitian yang digunakan adalah yuridis normatif dari peraturan perundangan, buku, dan lainnya, serta memperoleh data dari studi kepustakaan, teori hukum, dan data wawancara dari narasumber terpercaya.
Tattoo regret
Authors: Rao Anuja , Yadav Pravesh
Published: September 2024

Tattooing has been in practice since millenniums across the globe for various purposes such as art and beautification. Recently, a new perspective has become popular, particularly among youngsters as a fashion statement, an improvement of body image and as an expression of affection toward their loved ones. Various side effects such as infections, allergic contact dermatitis, scarring and granuloma formation, and inflammatory reactions have also been associated with tattooing. Tattoo regret is also on the rise with the increase in tattooing. The most common motivation for the removal of a tattoo is the enhancement of self-esteem. Other reasons for removal include eradication of a socially discrediting lesion, domestic pressure, and improvement of employment prospects.
AN OPTIMAL ALLOCATION ALGORITHM FOR REENTRANT RESOURCES ON NETWORK GRAPHS
Authors: Kosorukov O.A. , Lemtyuzhnikova D.V.
Published: September 2024

This paper considers the problem of allocating reentrant resources when performing a set of interdependent works that are represented by a network graph. By assumption, the work completion time linearly depends on the resource amount used. We justify a solution algorithm in the case of a set of works with a predetermined sequence of events in the network graph. Also, we propose an algorithm for reducing the general problem to an auxiliary one with ordered event times and an algorithm for constructing an optimal solution of the original problem. The convergence of this algorithm is ensured by finite iterations at each stage. The overall computational complexity of the algorithm can be estimated as O(n2), where n denotes the number of vertices in the original network graph. It seems promising to apply this algorithm for planning the sets of interdependent works using reentrant resources.
PROFIL GC-MS DAN BIOAKTIVITAS EKSTRAK MINYAK DAUN CENGKEH (Syzygium aromaticum) TERHADAP ULAT GRAYAK Spodoptera frugiperda (GC-MS PROFILING AND BIOACTIVITY OF EXTRACTS CLOVE LEAF OIL (Syzygium aromaticum) AGAINST FALL ARMYWORMS Spodoptera frugiperda)
Authors: Sitohang Mikael , Jayuska Afghani , Hernowo Kukuh , Alimuddin Andi Hairil , Aritonang Anthoni Batahan
Published: September 2024

Clove leaf essential oil can be used as a natural insecticide to control pests. Essential oil obtained by steam distillation produces essential oil with a yield of 1.03%. The essential oil obtained was then analyzed using a GC-MS tool where the aim was to separate the mixture of compounds and identify the compounds contained in clove leaf essential oil. The results of GC-MS analysis of clove leaf essential oil shoved 6 compounds whose similarity was above 84%, where the main compounds were eugenol (74.28%), β-Caryophellene (20.49%), α-Caryophellene (2.32%), Caryophellene oxide (2.26%). The essential oils were then tested for mortality and antifeedant activity against 3rd larva S. frugiperda. Concentrations of 0.1%, 0.3%, 0.5%, 0.7% and 0.9% v/v the essential oil caused 43.44%, 56.66%, 70%, 76.77%, and 86.66% mortality on to tested larva. The probit analysis data the mortality resulted LC50 value of 0.58%. Antifeedant concentrations of 0.37% and 0.58% v/v or equivalent to LC25 and LC50 can reduce 42.41-71.96% of the preferred method and 66.46-86.59% of the non-optioned method.
STUDI IN SILICO METABOLIT SEKUNDER DALAM TANAMAN TAHONGAI (Kleinhovia hospita L.) SEBAGAI KANDIDAT AGEN TERAPI KARSINOMA HEPATOSELULER TERTARGET RESEPTOR c-MET (IN SILICO STUDY OF SECONDARY METABOLITES IN TAHONGAI PLANT(Kleinhovia hospita L.) AS A CANDIDATEFOR HEPATOCELLULER CARCINOMA THERAPEUTIC AGENT TARGETING c-MET RECEPTOR)
Authors: Cahyaningrum Lydia , Rubianti Retno , Mahira Tsania , Gabriel Kevin , Rusdin Agus , Novitasari Dhania
Published: September 2024

Hepatocellular carcinoma (HCC) is the fourth leading cause of cancer-related mortality in the world, mainly caused by chronic disease or virus. Prior studies have documented that the upregulation of c-MET can trigger the cancer progression, hence c-MET has been widely explored as target therapy for HCC. Tahongai plant (Kleinhovia hospita L.) has known to possess several biological effects, including anticancer activity. However, the molecular mechanism in this plant has not been studied yet. In this study, the bioactive constituents from Tahongai were evaluated based on the physicochemical features and molecular interaction in c-MET through in silico approaches. The druglikeness of each compound was checked through SwissADME, while the pharmacokinetic profile was predicted through preADMET webtool. The pharmacophore screening and molecular docking against c-MET were assessed using LigandScout and Autodock, respectively. Out of 14 selected compounds, only one (astragalin) did not pass the Lipinski rule, and most of the compounds demonstrated good ADMET profile. Eleutherol was choosen as the hit compound based on pharmacophore studies, and stibostemin G was potential to inhibit c-MET based on similar molecular interaction compared to its native ligand through molecular docking analysis. Further confirmation is urged to prove its anticancer effect from Tahongai against HCC, particulary targeting on c-MET
Optically Transparent Porous Salt Thin Films Enable In Situ Characterization of Structure- and Depth-Dependent Post-Synthetic Metalation
Authors: Simmons Joe , Sarkar Subham , Ezazi Andrew , Sur Aishanee , Iverson Ethan , Morey Merissa , Chivington Austin , Grunlan Jaime , Powers David , Bloch Eric
Published: September 2024

Post-synthetic metalation and metathesis chemistry are central to rational synthesis of metal-organic frameworks (MOFs) that are unavailable by direct self-assembly. The rate, extent, and distribution of post-synthetically modified sites is challenging to characterize due to the microcrystallinity and heterogeneity of many materials. Here we describe the deposition of optically transparent, permanently porous thin films comprised of a peripherally carboxylated free-base porphyrin and a cationic porous molecular cage. The films are assembled via layer-by-layer growth controlled by Coulombic charge pairing, which allows for systematic control over the thickness of the obtained films. The obtained thin films are optically transparent monoliths that retain the permanent porosity of the corresponding porous salts. Postsynthetic metalation of these films with Mn(HMDS)2 affords the corresponding Mn(II) porphyrin-based materials (HMDS = hexamethyldisilazide). In situ spectroscopic monitoring, made possible by the optical transparency and synthetically controlled optical density of the films, enables metalation kinetics and extent to be directly monitored. We demonstrate both structure- and thickness-dependence on metalation kinetics. These results provide a unique window into the molecular scale mechanisms that underpin materials synthesis.
Highly Selective Methanol Synthesis Using Electrochemical CO2 Reduction with Defect-Engineered Cu58 Nanoclusters
Authors: Biswas Sourav , Tanaka Tomoya , Song Haohong , Ogami Masaki , Shingyouchi Yamato , Hossain Sakiat , Kamiyama Maho , Kosaka Taiga , Nakatani Riki , Niihori Yoshiki , Das Saikat , Kawawaki Tokuhisa , Jiang De-en , Negishi Yuichi
Published: September 2024

Atomically precise copper nanoclusters (Cu NCs) exhibit significant potential as catalysts for the electrocatalytic reduction of CO2. However, the range of products achievable with these NCs has been somewhat constrained. This study introduces an innovative design strategy to enhance the catalytic activity of Cu NCs by engineering their active sites. We achieve this by creating defects on a cubic Cu58 NC through the partial dislocation of Cu atoms at its vertices, leading to the ligand vacancies that exposes multiple Cu sites. Additionally, the dislocation of Cu atoms finely tunes the inner cationic geometries through altered cuprophilic interactions, resulting in discernable changes in their edges and vertices. When tested, these unique arrangements of Cu(I) atoms within the cluster prove effective in determining product specificities during electrochemical CO2 reduction. Density functional theory calculations correlate the product selectivity toward CH3OH for [Cu58H20(SPr)36(PPh3)7]2+ (Pr = CH2CH2CH3) NC to the enhanced edge Cu reactivity in binding CO and CHO intermediates, compared to [Cu58H20(SPr)36(PPh3)8]2+ and [Cu58H20(SEt)36(PPh3)6]2+ (Et = CH2CH3) NCs. This work underscores the potential of tailored structural designs of atomically precise nanocatalysts in steering electrochemical CO2 reduction toward unconventional products.
A Reduced Scaling Approach to Obtaining Embedding Orbital Coefficients: Benchmarking DMET-CCSD(T) Relative Energies in Water Clusters
Authors: Sun Yi
Published: September 2024

We present a method to significantly reduce the computational scaling of the post-Hartree- Fock (post-HF) component in Density Matrix Embedding Theory (DMET) calculations by exploiting the exponential decay properties of both the mean-field density matrix and the or- bital transformation matrix. Additionally, we extend this reduced-scaling approach to calculate the coupled-cluster CCSD(T) density matrix, facilitating DMET-CCSD(T) energy evaluations through a back-transformed energy formula. The accuracy of relative electronic energies is benchmarked using the all-electron solver, Lowdin-partitioned fragments, and fragments de- rived from Intrinsic Atomic Orbital and Projected Atomic Orbital (IAO+PAO) partitioning schemes. Our results demonstrate that, with appropriate utilization of the decay of one particle density matrix (1-PDM), the evaluation of the post-HF energy can achieve asymptotically linear scaling. Furthermore, for relative electronic energies calculations, Lowdin partitioning 1 performs well in weakly interacting systems, such as water clusters. This study underscores the potential of reduced-scaling techniques to improve computational efficiency and the efficacy of CCSD(T) solvers in delivering accurate thermochemical predictions in weakly interacting systems.
Intermediate-Temperature Reverse Water-Gas Shift Under Process Relevant Conditions Catalyzed by Dispersed Alkali Carbonates
Authors: Tamakuwala Kesha N. , Kennedy Robert P. , Li Chastity S. , Mutz Benjamin , Boller Peter , Bare Simon R. , Kanan Matthew W.
Published: September 2024

Current reverse water-gas shift (RWGS) technologies require extreme temperatures of >900°C. The ability to perform RWGS at lower temperatures could open new opportunities for sustainable chemical and fuel production, but most catalyst materials produce methane and coke at lower temperatures, especially at elevated pressures targeted for industrial processes. Here we show that transition metal-free catalysts composed of K2CO3 or Na2CO3 dispersed in commercial γ-Al2O3 supports (K2CO3/γ-Al2O3 and Na2CO3/γ-Al2O3) are highly effective RWGS catalysts in the intermediate-temperature regime. At a high gas hourly space velocity (GHSV) of 30,000 h−1 and operating pressure of 10 bar, K2CO3/γ-Al2O3 reached RWGS equilibrium-limited CO2 conversion at 550°C and was 100% selective for CO at all temperatures tested (up to 700°C). Na2CO3/γ-Al2O3 was also 100% CO-selective and only slightly less active. Both catalysts were stable for 100s of hours on stream at 525°C and tolerated large quantities of hydrocarbon impurity in the CO2/H2 feed. The unique performance attributes, combined with the low-cost components and extremely simple synthesis, make dispersed carbonate RWGS catalysts attractive options for industrial application.
Synergistic Combination of Crosslinked Polymer and Concentrated Ionic Liquid for Electrolytes with High Stability in Solid-State Lithium Metal Batteries
Authors: Zhang Mingjie , Makhlooghiazad Faezeh , Pal Urbi , Maleki Mahin , Kondou Shinji , Elia Giuseppe A , Gerbaldi Claudio , Forsyth Maria
Published: September 2024

PEO-based solid polymer electrolytes (SPEs) are regarded as excellent candidates for solid-state lithium metal batteries (LMBs) due to their inherent safety advantages, processability, low cost and excellent Li ion solvation. However, they suffer from limited oxidation stability (up to 4 V vs. Li+/Li). In this study, a newly designed crosslinked polymer-in-concentrated ionic liquid (PCIL) SPE consisting of PEO, C3mpyrFSI and LiFSI is developed. The adopted UV-crosslinking strategy synergistically reduces PEO crystallinity while increasing the amount of encompassed lithium salt and IL, and improves PEO oxidative stability, therefore leading to enhanced electrochemical performance. The physical and electrochemical properties of both linear and crosslinked SPEs are explored and compared. The designed crosslinked SPEs exhibited a promisingly high oxidative stability of 4.9V vs. Li+/Li and high ambient temperature ionic conductivity of 4 x10-4 S cm-1. Stable and reversible lithium plating/stripping is demonstrated in symmetrical Li||Li cells over hundreds of hours. High loading solid-state LFP||Li cells showed favourable cycling with over 90% capacity retention at 0.1C over 100 cycles at 50°C. High voltage solid-state LMO||Li cells exhibited promising cycling with 93% capacity retention at 0.2 C rate over 50 cycles at 50°C. Both cathodes utilized a high areal capacity of 1 mAh cm-2. The synergistic combination of crosslinking and concentrated ionic liquid electrolyte to a robust SPE enables a new pathway for designing high-performing PEO-based SPEs for high energy density solid-state LMBs.
ISO 45001 COMO ESTRATEGIA DE MEJORA PARA LA CULTURA DE SEGURIDAD EN LAS EMPRESAS DE AGREGADOS
Authors: Bustamante Castro Paul Jerson , Rabanal Domínguezˡ Wilson Alexis , Ramos Cotrina Luis Jhonny , Saavedra Malcaˡ Elia De La Rosa , Saba Valencia Jenifer Katherine , Suarez Castro Tito André
Published: September 2024

La presente investigación, titulada “ISO 45001 como estrategia de mejora para la Cultura de Seguridad en las empresas de Agregados en una Provincia, 2024”, se tomó como objetivo general proponer el uso del ISO 45001 como estrategia de mejorar para la cultura de seguridad en las empresas de agregados; donde en esta misma se utilizó una metodología de tipo de investigación de ámbito aplicativo, con alcance descriptivo-propositivo, con un enfoque cuantitativo, así mismo presenta un diseño no empírico-transversal, utilizando la táctica de la encuesta y su aparato el cuestionario dirigido a los colaboradores que fueron de 24 colaboradores; arrojando como resultado que se aprecia que un 38% manifestó tener una percepción dudosa, interpretando esto como una falta de importancia hacia la implementación de medidas que ayuden a mejorar la cultura de mejora, así mismo, también hay un 63% que manifestó tener una percepción dudosa, interpretando esto como una falta de importancia hacia el grado de la cultura de seguridad; trayendo como conclusión que las empresas deberían implementar estrategias basadas en el ISO 45001 para optimizar esta
DESAFÍOS Y OPORTUNIDADES EN LA IMPLEMENTACIÓN DE CICLOVÍAS EN ÁREAS URBANAS: CASO DE LA URBANIZACIÓN RETABLO, COMAS
Authors: Cobos Gutiérrez Carlos Eduardo
Published: September 2024

El propósito de esta investigación es analizar los desafíos y oportunidades en la implementación de ciclovías en áreas urbanas, tomando como caso de estudio la urbanización Retablo en el distrito de Comas. Utilizando un enfoque cuantitativo y un diseño no experimental, se exploraron las correlaciones entre la infraestructura de ciclovías y el desarrollo sostenible. Los resultados indican que, aunque existen numerosos desafíos, las ciclovías presentan oportunidades significativas para mejorar la movilidad urbana y la sostenibilidad ambiental. Se concluye que la coherencia con el medio ambiente y las facilidades de interconexión son factores clave para el éxito de estas infraestructuras.
ECONOMÍA CIRCULAR Y DESARROLLO SOSTENIBLE EN LAS EMPRESAS LAMBAYECANAS
Authors: Coba Sánchez Dustin Yerinson , Cruz Quispe Alicia Del Milagro , Flores Ticliahuanca Judit , Gálvez Ydrogo Nerly Yuleysi , Gavidia Tineo Angie Nadiana , Olano Hidalgo Mary Rossiny
Published: September 2024

Actualmente la conciencia por el desarrollo de prácticas sostenibles, la economía circular y el desarrollo sostenible se han convertido en pilares fundamentales para el futuro empresarial. La economía circular propone un modelo de optimización de recursos a través de las 4Rs, mientras que el desarrollo sostenible se centra en satisfacer las necesidades del presente sin comprometer la capacidad de las futuras generaciones, enfocándose en tres dimensiones principales: económica, social y ambiental. Por ello, el presente estudio tiene como objetivo general determinar la relación entre la economía circular y el desarrollo sostenible en las empresas lambayecanas. La investigación fue de carácter correlacional, con un enfoque cuantitativo, tipo descriptivo, diseño no experimental y corte transversal, utilizando una muestra de 20 empresas de la región. El instrumento empleado fue un cuestionario. Finalmente, se concluyó que la economía circular está correlacionada significativamente, de manera positiva y moderada, con el desarrollo ambiental y económico, afirmación respaldada por coeficientes de correlación de 0.458 y 0.475 respectivamente, y p-valores de 0.042.
IGUALDAD DE GÉNERO PARA LA MEJORA DE LA INCLUSIÓN SOCIAL EN LA REGIÓN LAMBAYEQUE
Authors: Condor Villalta Rosa Isabel , Vergara Cubas Kasandra Lucero , Rojas Lorenzo Gabriela , Portocarrero Chávez Fátima Lucia , Maira Rodríguez Cesar augusto
Published: September 2024

El estudio tiene como objetivo promover la igualdad de género para mejorar la inclusión social en el Perú, enfatizando la equidad y la participación de todas las personas. Los objetivos específicos abarcan la investigación sobre la igualdad de género impacta en la sociedad peruana como un elemento crucial para la inclusión social. También se busca analizar las políticas y programas que promueven la igualdad de oportunidades en sectores como la educación, el empleo, la salud y la participación política, con el fin de reducir las disparidades de género. Para lograr estos objetivos, se ha seguido un enfoque de investigación aplicada que se enfoca en generar conocimientos prácticos y encontrar soluciones específicas para abordar los desafíos de la desigualdad de género y la exclusión social en el contexto peruano. Este enfoque descriptivo aplicado permitió recolectar datos detallados a través de encuestas, entrevistas y análisis de datos. Los hallazgos de la investigación resaltaron la percepción limitada de la presencia de mujeres en roles políticos y de liderazgo en Lambayeque., así como la falta de promoción activa de la igualdad de género en las políticas de contratación empresarial y la preparación insuficiente de las instituciones educativas para atender a estudiantes con discapacidades. Se concluyó que la igualdad de género es fundamental en el Perú.
New crustacean invaders in the Schelde estuary (Belgium)
Authors: Soors Jan , Faasse Marco , Stevens Maarten , Verbessem Ingrid , De Regge Nico , Van den Bergh Ericia
Published: September 2024

This paper reports on the first records of three non-indigenous crustacean species in the Zeeschelde estuary (Belgium). All three species are native to the Western Pacific Ocean and are probably transported in ballast water or hull fouling. The isopod Synidotea laevidorsalis has been recorded earlier in Europe from two locations, in the south of France and in Spain. The present records constitute a range extension of more than 1000 kilometres to the north. The crab Hemigrapsus takanoi and the prawn Palaemon macrodactylus were found for the first time in the brackish reaches of the Schelde estuary. The finding of these species demonstrates the vulnerability of the estuarine system to the invasion of exotic species.
Regulation of proteostasis by sleep through autophagy inDrosophilamodels of Alzheimer’s disease
Authors: Ortiz-Vega Natalie , Lobato Amanda G , Canic Tijana , Zhu Yi , Lazopulo Stanislav , Syed Sheyum , Zhai R Grace
Published: September 2024

Sleep and circadian rhythm dysfunctions are common clinical features of Alzheimer’s disease (AD). Increasing evidence suggests that in addition to being a symptom, sleep disturbances can also drive the progression of neurodegeneration. Protein aggregation is a pathological hallmark of AD; however, the molecular pathways behind how sleep affects protein homeostasis remain elusive. Here we demonstrate that sleep modulation influences proteostasis and the progression of neurodegeneration inDrosophilamodels of tauopathy. We show that sleep deprivation enhanced Tau aggregational toxicity resulting in exacerbated synaptic degeneration. In contrast, sleep induction using gaboxadol led to reduced toxic Tau accumulation in neurons as a result of modulated autophagic flux and enhanced clearance of ubiquitinated Tau, suggesting altered protein processing and clearance that resulted in improved synaptic integrity and function. These findings highlight the complex relationship between sleep and regulation of protein homeostasis and the neuroprotective potential of sleep-enhancing therapeutics to slow the progression or delay the onset of neurodegeneration.
Anisotropic Barrow Holographic Dark Energy Models in Scalar-Tensor Theory of Gravitation
Authors: Sobhanbabu Y. , Satyanarayana G. , Chinamilli N.V.S. Swamy , Rambabu P.V.
Published: September 2024

In this research, we have derived the solution of the field equations of the scalar-tensor theory of gravitation, proposed by Saez and Ballester(Phys. Lett. A113, 467:1986) within the frame-work of Bianchi type-III Universe. We have analyzed the interacting and non-interacting anisotropic Barrow Holographic Dark Energy (BHDE) models by assuming the time dependent deceleration parameter q(t). Further, we have discussed the several cosmological parameters such as energy densities of pressureless dark matter and BHDE, skewness, deceleration, equation of state parameters, ωBH-ω'BH plane and stability of the both interacting and non-interacting models. Also, we have observed that in our non-interacting and interacting models deceleration and equation of state parameters support the recent observational data.
Reflectionless Incidence of the p-Polarized Electromagnetic Wave Through Solid-State Structure “Coating-Uniaxial Plasmonic Metasurface-Dielectric-Metal”
Authors: Biletskiy Mykola , Popovych Ivan D.
Published: September 2024

In this work we studied the effects which occur during the incidence of p-polarized electromagnetic wave on the solid-state structure “coating-uniaxial plasmonic metasurface-dielectric-metal”. The purpose of this work is researching how the coating influences the effect of reflectionless incidence of the p-polarized electromagnetic waves on the solid-state structure “uniaxial plasmonic metasurface-dielectric-metal”. Numerical modelling was used to find the conditions that lead to reflectionless incidence of the p-polarized electromagnetic wave on the solid-state structure under consideration. Using this method we determined the parameters of the coating which are required to observe incidence of p-polarized waves with no reflection. It was found that dielectric coating of the solid state structure significantly changes the behavior of the effect. We showed that dielectric permittivity of the coating changes the frequencies at which reflectionless p-polarized waves occur. The dependency was established between permittivity and thickness of the coating which causes the effect of the reflectionless incidence of p-polarized waves. The conducted research has a great scientific and practical interest. The solid-state structure that was studied can be applied for designing conceptually new types of nanoelectronic and optical devices.
Evolution of Vector Vortex Beams Formed by a Terahertz Laser Metal Resonator
Authors: Degtyarev Andrey V. , Dubinin Mykola M. , Maslov Vyacheslav A. , Muntean Konstantin I. , Svystunov Oleh O.
Published: September 2024

Analytical expressions for the nonparaxial mode diffraction of a terahertz laser metal waveguide resonator are obtained. The study assumes interaction between the modes and a spiral phase plate, considering different topological charges (n). Also, using numerical modeling, the physical features of the emerging vortex beams as they propagate in free space are studied. The Rayleigh-Sommerfeld vector theory is employed to investigate the propagation of vortex laser beams in the Fresnel zone, excited by the modes of a metal waveguide quasi-optical resonator upon incidence on a spiral phase plate. In free space, the spiral phase plate for exciting TE11 mode from the profile with the intensity maximum in the center (n = 0) forms an asymmetric ring one with two maxima (n = 1, 2). For the exciting TE01 mode, the initial ring (n = 0) structure of the field intensity is transformed into a structure with a maximum radiation intensity in the center (n = 1), and later again into a ring (n = 2). The phase front of the beam for the Ey component of the linearly polarized along the y axis TE11 mode changes from spherical to spiral with one on-axis singularity point. In the phase profile of the transverse components of the azimuthally polarized TE01 mode, a region with two and three off-axis phase singularity points appears.
Thermal and Mass Stratification Effects on Unsteady MHD Parabolic Flow Past an Infinite Vertical Plate with Variable Temperature and Mass Diffusion Through Porous Medium
Authors: Das Pappu , Deka Rudra Kanta
Published: September 2024

This study examines how thermal and mass stratification affect unsteady MHD parabolic flow past an infinite vertical plate through porous medium with variable heat and mass diffusion. Analytical solutions are derived for unitary Prandtl and Schmidt numbers using Laplace transform technique to simulate the the flow's physical process. The investigation takes into account how the flow field is impacted by thermal and mass stratification. Following that, the outcomes of the stratification case are then comapared with the scenario in which the flow field has no stratification. The finding of this study can help us comprehend more about the unsteady MHD parabolic flow and provide insightful information for stratified systems.
Thermo-Diffusion and Diffusion-Thermo Effects on MHD Convective Flow Past an Impulsively Started Vertical Plate Embedded in Porous Medium
Authors: Choudhury Kangkan , Sharma Sweety , Ahmed Shahir
Published: September 2024

This study introduces an analytical solution for the unsteady MHD free convection and mass transfer flow past a vertical plate embedded in porous medium, taking into account the Soret and Dufour effects. Initially, the perturbation method is employed to decouple the equations resulting from the coupling of the Soret and Dufour effects. Subsequently, the Laplace Transform Technique is applied to solve the governing equations. The expressions for velocity, temperature, concentration, skin-friction, Nusselt, and Sherwood numbers are derived. The effects of the main parameters are discussed, revealing that an increase in the Soret number leads to a decrease in temperature while increasing velocity and concentration. Similarly, the Dufour parameter causes an increase in temperature and velocity, while concentration decreases. However, the effect of the Dufour and Soret parameters on velocity does not show a significant difference.
Comparative Analysis of the Plane Couette Flow of Couple Stress Fluid Under the Influence of Magnetohydrodynamics
Authors: Farooq Muhammad , Khan Ibrar , Nawaz Rashid , Ismail Gamal M. , Umar Huzaifa , Ahmad Hijaz
Published: September 2024

The present study aims to perform a comparative analysis of the plane Couette flow of a couple stress fluid under the influence of magnetohydrodynamics (MHD) using two different methods: the Optimal Auxiliary Function Method (OAFM) and the Homotopy Perturbation Method (HPM). The couple stress fluid is known for its non-Newtonian behavior, where the fluid's response to shear is influenced by the presence of internal microstructure. The OAFM and HPM are utlized to solve the governing equations of the couple stress fluid flow under MHD. The OAFM is a numerical technique that involves introducing an auxiliary function to simplify the equations, leading to an easier solution procedure. On the other hand, HPM is an analytical method that employs a series solution . The comparative analysis focuses on examining the accuracy, efficiency, and convergence behavior of the two methods. Various flow parameters such as the couple stress parameter, the magnetic parameter, and the velocity ratio are considered to investigate their influence on the flow behavior. Furthermore the HPM solution was compared with the OAFM solution using different graphs and tables. It reveals that the solution obtained by HPM is batter than OAFM solution.
New Trend of Automobile Aspects on MHD of Hybrid Nanofluid Flow Over a Porous Stretching Cylinder: A Numerical Study
Authors: Gunisetty Ramasekhar , Reddy Y. Rameswara , Sreenivasulu Sura , Jakeer Shaik , Reddy Seethi Reddy Reddisekhar , Suneetha Sangapatnam , Srinivas T. Aditya Sai , Sarabu Ashok
Published: September 2024

Heat transfer innovation is essential in modern society because thermal management systems need effective heating and cooling processes. It is also an essential component in the vehicle industry and other types of transportation, in addition to automobile industry, aviation technology, the computer industry, and the manufacturing industry. By the inspiration of importance of magnetohydrodynamic hybrid nanofluid over a stretching cylinder with the influence of Williamson fluid and porous medium is examined in this current study. To convert the PDEs into ODEs, suitable self-similarity transformation is used. After applying transformations, for graphical purpose we have used the bvp5c technique. The impact of active parameters affecting the fluid’s capacity to transfer significance is demonstrate in graphs and tables. In the result section we noticed on the velocity outlines decreased for increasing M parameter. The Cf and Nu increased for larger values of the M and curvature parameters. Additional properties of M and Rd parameter inputs result in improved temperature profiles.
Strength Properties pf 25CrMoV Steel Modified by Complex Ion Plasma Treatment with Deposition of Interlayer Metal Coatings
Authors: Zadneprovskiy Yuriy A. , Belous Vitaliy A. , Besedina Yuliya A. , Tolmachova Galyna N.
Published: September 2024

To improve erosion resistance, strength, and other protective properties, a comprehensive modification of the surface layers of 25CrMoV steel, which is widely used in turbine construction, was performed. For comparative studies, modifications with different interlayer materials (Mo and Ti) and modifications without interlayer were used. The Mo and Ti layers were deposited on a nitrided ion plasma surface. The outer protective layer for all modifications was unchanged and consisted of a Mo2N coating. To determine the role of the deposition of interlayer metal coatings on the strength properties of the complex modified coatings, the distributions of hardness (H, GPa), Young's modulus (E, GPa), and other strength parameters (H/E and H3/E2) measured by cross sections (h, µm) were investigated. The hardness of the Mo2N coating was ~30 GPa, and the hardness of the nitrided layer was ~12 GPa. The modulus of elasticity for the Mo2N coating was ⁓415 GPa, and for the nitrided steel - ⁓270 GPa. It was found that the main factor influencing the strength properties of a multilayer structure is related to the different materials of the metal layers. For the Mo and Ti layers, the values of E differ significantly (⁓ 340 GPa and ⁓ 180 GPa, respectively), with almost identical values of H (⁓ 6.5 GPa). The distributions of elastic modulus E = f(h) measured in the modified layers correlate well with the distributions of nitrogen concentration CN = f(h). The distributions of H/E = f(h) and H3/E2 = f(h) for the modifications with Mo and Ti layers show a decrease in mechanical properties in the areas of the intermediate layers (Mo and Ti). For the modification without interlayer, the distributions of these indicators do not show such a drawback. The cavitation resistance of the comprehensively modified 25CrMoV steel is up to 2 times higher than that of the steel in the original condition. NSC KIPT performed extensive ion plasma modification on a pilot batch of turbine parts. These products, which are part of the steam distribution mechanisms, were manufactured by Ukrainian Power Machines JSC (Kharkiv) for the thermal power industry.
X-Ray Structural and Photoelectric Properties of SnO2, ZnO, and Zn2SnO4 Metal Oxide Films
Authors: Mansurov Khotamjon J. , Boboev Akramjon Y. , Urinboyev Jakhongir A.
Published: September 2024

The conditions and parameters for the synthesis of metal oxide films (ZnO, SnO2, and Zn2SnO4) by spray pyrolysis have been determined. The films were synthesized from aqueous solutions; the main differences between the methods were in the composition of the precursors, in the modes and time of deposition. The crystal structure of the Zn2SnO4 film corresponds to the cubic lattice, which belongs to the space group Fd3m with blocks 53 nm in size and lattice parameters a = 6.238 Å. Films of SnO2 and ZnO nanocrystallites 28 and 31 nm in size coherently arranged with lattices in the volume of thin Zn2SnO4 films can exhibit quantum size effects, which is of interest for modern nanotechnology. The crystals of the obtained SnO2 films have a tetragonal Bravais lattice with the space group P4 2/mnm with lattice parameters a = b = 4.836 Å and c = 3.245 Å, and the size of the SnO2 film subcrystals is 61 nm. The resulting ZnO films belong to the C6/mmc space group and the crystal lattice has a hexagonal syngony with the wurtzite structure with parameters a = b = 0.3265 nm and c = 0.5212 nm. It has been determined that, on the surface of the thin film grown, zinc oxide bumps with sizes LZnO ≈ 84 nm appear, which affect the unique properties of the samples. It is shown that the resulting thin Zn2SnO4, SnO2, and ZnO films can be used in a wide range of applications from sensitive sensor elements to coatings in transparent electronics in terms of their optical parameters.
Radiation Graft Copolymerization of Vinyl Fluoride to Cotton, Hydrocellulose Fiber and Fabric
Authors: Jamoldinov Fozilbek Z. , Yusupaliyev Rixsibek M. , Asrorov Ummatjon A.
Published: September 2024

Cellulose-based materials are not in short supply and are characterized by relatively low cost. On the other hand, cellulose fibers have a wide range of valuable physical, chemical and mechanical properties that make them indispensable in a number of sectors of the national economy. Along with valuable qualities, natural and artificial cellulose fibers also have some disadvantages that limit their use in technology and in the national economy. These are low resistance to the action of microorganisms, relatively low heat resistance, chemical resistance, flammability, etc., which reduce their service life and limit their scope. One of the ways to eliminate these shortcomings is the modification of natural and artificial macromolecular compounds by chemical and physicochemical methods. Improving the properties of cellulose and its derivatives can be achieved by various modification methods, among which one of the most promising is the radiation-chemical grafting of various monomers. One of the advantages of this method, in comparison with others, is the production of field worlds that are not contaminated with impurities, the presence of which can adversely affect their physicochemical properties. Another advantage is the relative ease of formation of macroradicals necessary to initiate the process of graft copolymerization. Quite a lot of work has been devoted to the radiation grafting of various monomers to cellulose and its derivatives; at present, some of them are beginning to be widely used in the national economy. In the light of the foregoing, the grafting of fluorine-containing monomers, the polymers and copolmers of which have such very valuable and specific properties as high heat resistance, chemical resistance, light resistance, decay resistance and hydrophobicity to cellulose and its derivatives, is of great scientific and practical interest. This work is the synthesis of graft copolymers of cotton cellulose with vinyl fluoride by the radiation-chemical method from the vapor phase, the study of the effect of radiation dose rate, reaction time, the presence and nature of solvents on the course of this process and the yield of graft copolymers, as well as the study of such important physical and chemical properties and operational properties of the original, irradiated and grafted copolymers, such as sorption capacity and density, hydrophobicity and swelling, degree of whiteness, mechanical properties, thermal stability, the nature of the change in the supramolecular structure as a result of grafting fluorine-containing polymers.
Deciphering the Molecular Details of Interactions Between Heavy Metals and Proteins: Molecular Docking Study
Authors: Zhytniakivska O. , Tarabara U. , Vus K. , Trusova V. , Gorbenko G.
Published: September 2024

Understanding the interaction of heavy metals with proteins is pivotal for unraveling their roles in biochemical processes and metal-induced diseases, with wide-ranging implications spanning medicine, environmental science, and biotechnology, thereby driving progress in therapeutics, pollution mitigation, and biomaterial innovation. In the present study the molecular docking technique was employed to identify and characterize the binding sites of the set of heavy metals (Cu2+, Fe3+, Mg2+, Mn2+, Zn2+, Cd2+, Fe2+, Ni2+, Hg2+, Co2+, Cu+, Au+, Ba2+, Pb2+, Pt2+, Sm3+, and Sr2+) and proteins ((β-lactoglobulin, 7S globulin and glycinin from soybeans) to evaluate the impact of protein structure on their ion-binding abilities and selectivity. Our docking results indicate that essential and toxic heavy metals interact with multiple binding sites of proteins, presumably by electrostatic interactions and metal chelation with cysteine, aspartic acid, glutamic acid, and histidine amino acid residues. The comparison of binding residues favorable for heavy metal complexation among different proteins indicates that metals exhibit distinct preferences for various amino acid residues highlighting the importance of both the metal and the protein properties for stabilizing protein-metal complexation.
Credit Risk Modeling Based on Geographical Location: A Case Study of Savings and Loan Cooperatives
Authors: Widodo Edi Widodo, , Rifai Ahmad , Buana Pratama Angga
Published: September 2024

The aim of this study is to examine how geographical location affects the credit risk faced by savings and loan cooperatives. Using a quantitative approach, this research will develop a credit risk model that considers geographical variables,
measured by the Human Development Index (HDI). The initial stage of the research involves classifying the credit dataset according to the categories
determined by Bank Indonesia. The data cleansing process resulted in attributes such as credit ceiling, HDI, and credit category. Analysis was conducted using Chi-Square, and Logistic Regression methods. The Chi-Square analysis results showed  
statistically significant relationship between credit ceiling, HDI, and credit category (p-value < 0.05). The Logistic Regression models demonstrated high accuracy in classifying the data, with Logistic Regression achieving 89.71%. In conclusion, credit ceiling and HDI have a significant influence on credit category, with the Logistic Regression model data classification. This study provides valuable
insights into how credit ceiling and HDI influence credit categories, which can be used to make better decisions related to public policy, development
planning, and social interventions
Genetic polymorphism and cluster analyses based on the conserved DNAderived polymorphism markers in the selected Harumanis and non-Harumanis
mango varieties
Authors: Rahman A.M.A. , Zakaria Z. , Aziz N.A. , Xuan K.H. , Rahman K.H.A. , Mohtar J.A. , Intan S.A.S. , Mokhtar M.A.A. , Gaši F. , Pilav A. , Çakmak E.
Published: September 2024

Various mango varieties have been cultivated in Malaysia for decades and the fruit plays a
significant impact on trading nationwide. Harumanis is the most outstanding mango
variety in terms of taste and quality which led to a premium price of up to 8.57 USD per
kilogram. This has steered fraud in substituting with cheaper mango varieties such as
Tong Dam and Susu due to similar morphological features. Morphological characteristics
are commonly used to differentiate Harumanis mango from other varieties although it is
inefficient, less stable, and affected by environmental factors. This research aimed to
evaluate the genetic polymorphism in three mango varieties and assess the potential of
conserved-DNA derived polymorphism (CDDP) as a DNA marker in differentiating
Harumanis and non-Harumanis mango samples. A total of fifteen Harumanis and nonHarumanis mango samples were studied. A total of 371 bands were amplified by a set of
six CDDP primers for fourteen mango leaf samples. The percentage of polymorphism
observed for all six primers was higher than 65%. Primer WRKY-R1 showed the highest
polymorphism percentage and polymorphism information content, which was 100% and
0.44, respectively, making it the most efficient CDDP primer to differentiate Harumanis
and non-harumanis mango varieties in this study. Primer WRKY-F1 showed the highest
value of resolving power at 8.57 with the highest number of loci was 15. The UPGMA
dendrogram constructed based on CDDP data revealed fourteen samples were grouped
into four major clusters with all different varieties forming their own clad. The study
demonstrated that CDDP markers can be effectively used in the characterization of
different mango genotypes and in genetic diversity analysis, facilitating the development
of DNA fingerprinting of the leading Harumanis mango, as well as better management of
mango fruit resources in Malaysia.
Management Measures for Preventing Postoperative Incision Infections in General Surgery at Primary Hospitals
Authors: Yang Jianqiang
Published: September 2024

Objective: To analyze the management measures and effects of preventing postoperative incision infections in the general surgery department of primary hospitals. Methods: Forty-nine surgical patients with 11 healthcare workers who were admitted to the general surgery department of the primary hospital between August 2021 and August 2022 were selected as the routine group for routine incision infection management. Forty-nine surgical patients with 11 healthcare workers admitted to the same department between September 2022 and September 2023 were selected as the prevention group for prophylactic management of postoperative incision infections. The incision infection rate, knowledge, attitude, and practice (KAP) scores, and management satisfaction of the patients as well as the management skill scores of healthcare workers were compared between the two groups. Results: The rate of postoperative incision infection in the prevention group was lower than that in the routine group; after implementing management measures, patients in the prevention group had higher KAP scores than those in the routine group; patients in the prevention group were more satisfied with the management than those in the routine group; and healthcare workers in the prevention group had higher scores than those in the routine group, with P < 0.05 for the comparison between the groups. Conclusion: The implementation of preventive management for general surgery patients in primary hospitals can reduce the incidence of postoperative incision infection and improve the KAP of patients, with higher management satisfaction. It can also enhance the management skills of healthcare workers, thus improving their overall management level.