bluuebunny/crossref_metadata_2025 huggingface dataset:
Three-Dimensional Quantitative Flow Visualization Around a Thrust Reverser
Authors: Hysa Ilda , Tuinstra Marthijn , Sciacchitano Andrea , Scarano Fulvio , Schwartz Nicholas , Harrison Charles , Gebbink Roy
Published: October 2023

Volumetric particle tracking velocimetry measurements are performed in a low-speed wind tunnel to study the flow around a 1:12-scale aircraft model with jet engines operating with thrust reversers. The engine jet and freestream flow velocity are varied to yield a jet to freestream velocity ratio of [Formula: see text] ranging from 1.5 to 6. Measurements at such scale ([Formula: see text]) require the use of strongly scattering helium-filled soap bubbles as flow tracers, which are introduced in both the jet and the freestream flow. The tracer’s three-dimensional motion is determined using an array of cameras and a Lagrangian particle tracking algorithm. The mean velocity field reveals the jet inner structure as well as its interaction with the freestream, the ground board, the nacelle, the fuselage, and the horizontal and vertical tails. The experiments allow detection of exhaust reingestion as well as the aerodynamic interference with control surfaces at the tail segments in a single measurement volume. The results are in good agreement with conventional temperature rake measurements while adding details of the flow topology and of the large-scale unsteady flow fluctuations. Finally, the jet reversal characteristics with varying freestreams and nozzle pressure ratios are assessed, demonstrating the feasibility and versatility of volumetric velocimetry measurements for industrial aerodynamics.
Suivre un flow d'informations : Entre l’observation et la visualisation des échanges lors des réunions de coordination BIM
Authors: Rahhal Anabelle , Rajeb Samia Ben , Leclercq Pierre
Published: October 2023

Cet article porte sur la méthodologie d’observation et de visualisation des échanges lors des réunions de coordination BIM (Building Information Management). Contrairement à des plateformes numériques collaboratives, le suivi et la compréhension des discussions lors des réunions de coordination BIM est un défi important, vu le nombre important d’informations échangées. Dans ce travail, nous proposons une caractérisation des informations échangées selon plusieurs critères, constituant une grille d’observation et d’analyse, afin de pouvoir traiter l’ensemble des données récoltées, sur 4 ans d’expérimentation dans un projet collaboratif en BIM. Un modèle de la communication interactive entre les acteurs d’un groupe est proposé, dans lequel nous visons à apporter une caractérisation visuelle des échanges d’information, tout en schématisant les flux réels des échanges en réunion de coordination BIM. Cette schématisation est facilement analysable dans notre approche descriptive et interprétative de la situation observée.
Analyse d’activités de conception intégrée : une méthode de traçabilité de l’information et de la visualisation de son évolution
Authors: Gaëlle Baudoux , Leclercq Pierre
Published: October 2023

Cet article se positionne dans le contexte d’une recherche sur l’activité de conception architecturale collaborative visant à comprendre comment évoluent les informations caractérisant le projet et au travers de quels objets médiateurs s’effectue cette évolution. L’originalité de notre recherche est d’effectuer un changement de paradigme en plaçant les informations caractérisant le projet au cœur du questionnement. Nous adressons ici la problématique de la traçabilité de ces informations tout au long de la conception et de la visualisation de cette évolution d’information dans l’activité. Pour cela, nous mettons en place un protocole d’observation présentant l’originalité de permettre la caractérisation en temps réel d’activités de conception de natures et de temporalités différentes. Nous proposons ensuite de nouveaux formalismes pour visualiser ces données et représenter l’activité.
PENGARUH INOKULASI RHIZOBIUM DAN PUPUK FOSFAT TERHADAP PERTUMBUHAN DAN HASIL KEDELAI EDAMAME PADA TANAH ALUVIAL
Authors: Andra Andra , Hadijah Siti , Anggorowati Dini
Published: October 2023

merupakan salah satu tanaman pangan yang banyak dibudidayakan oleh petani diIndonesia. Edamame bisa dimanfaatkan sebagai makanan sela atau cemilan, makanan pembuka,  dan berbagai olahan lainnya. Tanah Aluvial sebagai media tumbuh tanaman edamame mempunyai beberapa kendala seperti pH rendah, struktur tanah menggumpal, mudah tergenang, penyediaan air dan udara yang buruk, dan kurangnya kandungan unsur hara serta bahan organik pada tanah. Selain faktor tanah ketersediaan unsur hara seperti N merupakan unsur paling penting dalam pertumbuhan edamame. Namun ketersediaan N didaerah tropis seperti indonesia tergolong rendah maka perlu dilakukan inokulasi Rhizobum yang berperan dalam menambat N diudara sehingga diharapkan dapat memenuhi kebutuhan N pada tanaman kedelai  dan pemberiaan  pupuk Fosfat sebagai penunjang simbiosis antara rhizobium dan tanaman kedelai edamame. Tujuan dilakukannya penelitian ini adalah untuk mendapatkan interaksi dosis Rhizobium dan pupuk fosfat yang memberikan pertumbuhan dan hasil edamame terbaik pada tanah Aluvial. Penelitian dilakukan selama kurang lebih  3 bulan yang dimulai sejak 15 Agustus 2022 sampai dengan 22 oktober 2022. Penelitian ini menggunakan metode Rancangan Acak Kelompok (RAK) Faktorial yang terdiri dari 2 faktor perlakuan. Faktor inokulasi rhizobium 3 taraf, dan faktor pupuk Fosfat 3 taraf. Perlakuan diulang sebanyak 3 kali. Perlakuan yang dimaksud adalah faktor pertama r0= 0 g/kg benih, r1= 4 g/kg benih, r2= 8 g/kg benih, faktor kedua p1= 150 kg/ha pupuk Fosfat setara dengan 28,8 g/petak, p2= 200 kg/ha pupuk Fosfat setara dengan 38,4 g/petak, p3= 250 kg/ha pupuk Fosfat setara dengan 48 g/petak. Variabel pengamatan meliputi tinggi tanaman, berat kering tanaman, jumlah bintil akar efektif, jumlah bintil keseluruhan, jumlah polong pertanaman, berat polong pertanaman, dan berat polong perpetak.  Berdasarkan hasil penelitian yang telah dilaksanakan, didapatkan kesimpulan bahwa (1) pengaruh tunggal inokulasi rhizobium dosis 4g/kg benih memberikan pengaruh yang nyata terhadap hampir seluruh variabel pengamatan kecuali pada parameter tinggi tanaman  (2) pengaruh tunggal pemberian pupuk fosfat  memberikan pengaruh yang tidak nyata terhadap semua variabel pengamatan dan tidak menunjukan adanya interaksi antara perlakuan rhizobium dan posfat terhadap semua variabel pengamatan.
PENGUJIAN PAKET PEMUPUKAN MENTIMUN SISTEM BUDIDAYA JENUH AIR PADA LAHAN SULFAT MASAM
Authors: Virgiri Simius , Basuni Basuni , Nurjani Nurjani
Published: October 2023

Mentimun salah satu tanaman yang termasuk dalam family Cucurbitaceae (tanaman labu-labuan). Pemupukan mentimun oleh petani pada praktiknya di lapangan masih banyak menggunakan jenis pupuk, pemberian atau cara dan dosis yang berbeda-beda yang diberikan ke tanaman. Upaya peningkatan produktivitas mentimun dapat dilakukan dengan pemupukan menggunakan organik dan anorganik diharapkan dapat memperbaiki kesuburan tanah, mengganti hara yang hilang karena terikat dan tercuci, meningkatkan kualitas dan produksi mentimun. Pengunaan pupuk kandang ayam, Urea, KCl, Phonska, SP-36 dan NPK mutiara dapat meningkatkan ketersedian unsur hara nitrogen, fospat, dan kalium yang dapat meningkatkan produksi dan hasil mentimun. Penelitian ini bertujuan untuk mendapatkan paket pemupukan yang terbaik untuk pertumbuhan dan hasil mentimun sistem budidaya jenuh air pada lahan sulfat masam. Penelitian ini dilaksanakan di Desa Kalimas, Kecamatan Sungai Kakap, Kabupaten Kubu Raya (25 September-05 Desember 2022). Metode penelitian menggunakan Rancangan Acak Kelompok (RAK) yang terdiri dari 5 paket pemupukan dengan 5 ulangan sehingga terdapat 25 unit perlakuan. Setiap unit perlakuan terdiri dari 8 tanaman sampel. Paket pemupukan yang dimaksud yaitu Paket A(Pukan Ayam 10ton/ha, NPK Mutiara 16:16:16 200 kg/ha, Urea 200 kg/ha), Paket B(Pukan Ayam 20 ton/ha, NPK Mutiara 16:16:16 300kg/ha), Paket C(Pukan Ayam 10 ton/ha, Phonska 100 kg/ha, Mutiara 16:16:16 300 kg/ha, Urea 300 kg/ha dan KCl 300 kg/ha), Paket D (Pukan Ayam 4 ton/ha, dolomit 500 kg/ha, SP-36 200 kg/ha, Mutiara 16:16:16 500 kg/ha, Urea 250 kg/ha, KCl 100 kg/ha dan pukan ayam 1,8 ton/ha, Paket E (Dolomit 2.000 kg/ha, Pukan Ayam 20 ton/ha, Urea 950 kg/ha, SP-36 500 kg/ha dan KCl 700 kg/ha). Variabel yang diamati meliputi volume akar, berat kering tanaman, berat buah pertanaman, jumlah buah pertanaman, panjang buah dan diameter buah. Hasil penelitian menunjukkan bahwa pemberian paket pemupukan A B C dan E sama baiknya dalam meningkatkan pertumbuhan dan hasil mentimun sistem budidaya jenuh air pada lahan sulfat masam.
Respon Pemberian Bokashi Limbah Sayuran dan Pupuk NPK Terhadap Pertumbuhan dan Hasil Tanaman Edamame Pada Tanah PMK.
Authors: Pramudia Dimas Trifasha , Hadijah Siti , Surachman Surachman
Published: October 2023

Tanaman edamame (Glycine max (L.) Merill) merupakantanaman leguminosa multiguna untuk berbagai macam jenis kebutuhan, baik untuk pangan, pakan, bahan baku industri manufaktur dan olahan. Edamame adalah kedelai sayur yang berasal dari Jepang, yang dapat dikonsumsi sebagai sayuranmaupun makanan ringan. Kedelai edamame mengandungkadar gizi yang cukup tinggi yaitu 582 kkal/100 g, protein 11,4g/100 g, karbohidrat 7,4 g/100 g, lemak 6,6 g/100 g, vitamin A 100 mg/100 g, B1 0,27 mg /100 g, B2 0,14 mg/100 g, B3 1 mg/100 g, dan vitamin C 27%, serta mineral-mineral seperti fosfor 140 mg/100 g, kalsium 70 mg/100 g, besi 1,7 mg/100 g dan kalium 140 mg/100g . Penelitian ini bertujuan untuk mendapatkan dosis terbaik dari pemberian kompos hijau dan NPK terbaik terhadap pertumbuhan dan hasil tanamanedamame di tanah PMK. Penelitian ini menggunakan metode eksperimen pola rancangan acak lengkap (RAL) yang terdiri dari 5 perlakuan dengan 5 kali ulangan. Setiap satuan unit percobaan terdiri dari 4 sampel tanaman, sehingga total tanaman keseluruhan 100 tanaman. hasi penelitian dapat disimpulkan bahwa Penggunaan kombinasi Bokashi Limbah Sayuran dan Pupuk NPK yang efesien adalah dengan dosis 20 ton/ha bokashi limbah sayuran dan 50% pupuk NPK.
PENGARUH KONSENTRASI AIR AKI PADA PEMATAHAN DORMANSI BENIH SALAK
Authors: Dewi Eva Utari , Asnawati Asnawati , Wasi’an Wasi’an
Published: October 2023

Budidaya salak secara generatif memiliki masalah utama yaitu sifat dormansi pada biji salak yang menyebabkan biji sulit untuk berkecambah. Upaya yang dapat dilakukan untuk membantu proses pematahan dormansi adalah dengan perlakuan khusus, salah satunya perendaman biji dengan larutan air aki yang memiliki kandung H2S04. Penelitian ini bertujuan untuk mendapatkan konsentrasi air aki terbaik dalam proses pematahan dormansi biji salak. Penelitian ini dilaksanakan di Jalan Adisucipto, Komplek Pondok Indah Lestari, Kabupaten Kubu Raya dengan lama penelitian ± 2 bulan sejak 13 Desember 2022 - 31 Februari 2023. Metode penelitian menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari 6 perlakuan dan 4 ulangan sehingga jumlah unit pelaksanaan yang dibutuhkan adalah 24 unit perlakuan. Setiap unit/plot ditanam 20 benih salak, sehingga jumlah benih yang digunakan sebanyak 480 benih. Taraf perlakuan yang digunakan adalah sebagai berikut: C0: Kontrol, C1:5%, C2: 10%, C3: 15%, C4: 20% dan C5: 25% dengan lama perendaman 15 menit untuk semua taraf perlakuan. Variabel yang diamati meliputi Indeks Vigor, Keserempakan Tumbuh, Daya Berkecambah, Kecepatan Tumbuh, Panjang Radikula dan Panjang Plumula. Hasil penelitian menunjukan bahwa perendaman air aki dengan konsentrasi 15% memberikan hasil yang terbaik terhadap pematahan dormansi benih salak.
KEPUASAN KONSUMEN TERHADAP KERAJINAN ANYAMAN AKAR KELADI AIR (Sagittaria Guyanensis)
Authors: Sulistyawati Endang , Dolorosa Eva , Suharyani Anita
Published: October 2023

Tujuan dari penelitian ini adalah untuk mengetahui tingkat kepuasan konsumen pada industri  kerajian anyaman akar keladi air (Sagittaria Guyanensis). Sampel dari penelitian ini terdiri dari 96 responden. Importance Performance Analysis (IPA) and Customer Satisfaction Index (CSI) digunakan sebagai teknik analisis data. Hasil analisis data menunjukan bahwa hasil Importance Performance Analysis (IPA) yang menjadi prioritas utama yang harus ditingkatkanadalah keterjangkauan harga, kesesuaian harga dengan manfaat, akses transportasi kelokasi, periklanan. Tingkat Customer Satisfaction Index (CSI) dari atribut kepuasan konsumen secara keseluruan puas, ditunjukan oleh 72,1 persen. Tingkat kepuasan tertinggi adalah kualitas produk dengan skor rata-rata 3,900.sebaliknya atribut dengan tingkat kinerja terendah adalah akses transportasi kelokasi  dengan skor rata-rata 3,385.
RESPON PERTUMBUHAN DAN HASIL KUBIS BUNGA TERHADAP PEMBERIAN PUPUK KANDANG KAMBING DAN PUPUK NPK PADA TANAH ALUVIAL
Authors: Melsy Clara Francini , Zulfita Dwi , Listiawati Agustina
Published: October 2023

Poduktivitas kubis bunga di Kalimantan Barat masih rendah karena pengembangannya dalam skala area kecil dan teknologi pemupukan Syang belum berimbang pada tanah-tanah yang cenderung bersifat masam contohnya tanah aluvial, mengakibatkan kubis bunga tidak dapat tumbuh optimal, sehingga penambahan unsur hara pada tanah aluvial dapat dilakukan dengan penambahan pupuk kandang kambing dan pupuk NPK. Penelitian ini dilaksanakan di Jalan Reformasi, Gg. Struktur. Penelitian ini dilaksanakan dari tanggal 18 Maret sampai 18 Mei 2023. Penelitian ini bertujuan untuk mendapatkan dosis interaksi antara Pupuk Kandang Kambing dan pupuk NPK yang terbaik terhadap Pertumbuhan dan Hasil Kubis Bunga pada Tanah Aluvial. Penelitian ini menggunakan rancangan Faktorial dengan Pola Rancangan Acak Lengkap (RAL). Perlakuan terdiri dari dua faktor yaitu dosis pupuk kandang kambing (K) dengan 3 taraf perlakuan dan Pupuk NPK (N) dengan 3 taraf perlakuan. Penelitian terdiri dari 3 ulangan dan 4 sampel dengan jumlah total 108 tanaman. Perlakuan yang dimaksud terdiri dari faktor pertama dosis perlakuan pupuk kandang kambing (K) yaitu k1 = 20 ton/ha setara dengan 100 g/polybag, k2 = 30 ton/ha setara dengan 150 g/polybag, dan k3 = 40 ton/ha setara dengan 200 g/polybag; dan faktor kedua dosis perlakuan pupuk NPK (N) yaitu n1 = 350 kg NPK/ha setara dengan 11 g/tanaman, n2 = 450 kg NPK/ha setara dengan 15 g/tanaman dan n3 = 550 kg NPK/ha setara dengan 18 g/tanaman. Variabel yang diamati dalam penelitian ini adalah jumlah helai daun (helai), volume akar (cm3), luas daun (cm), berat kering tanaman (g), berat segar krop (g), dan diameter krop. Hasil penelitian menunjukkan bahwa bahwa pemberian dosis pupuk kandang kambing 20 ton/ha setara dengan 100 g/polybag dan dosis pupuk NPK dosis 350 kg/ha setara dengan 11 g/tanaman merupakan dosis yang efisien untuk pertumbuhan dan hasil kubis bunga pada tanah aluvial.Kata kunci: Tanah Aluvial, Kubis Bunga, Pupuk Kandang Kambing, Pupuk NPK.
Molecular Exchange in Lipid Nanoparticles via Time-Resolved Small Angle Neutron Scattering
Authors: Hilburg Shayna , Sokolova Anna , Pozzo Lilo D.
Published: October 2023

The nano-scale dynamics of lipid nanoparticles (LNPs) for drug delivery play a large role in their function. Limited molecular motion is important for avoiding degradation prior to entering cells. Intracellularly, enhanced molecular motion is then vital for effective endosomal escape. We experimentally quantify such nano-scale dynamics through time-resolved small-angle neutron scattering (TR-SANS). This technique, previously leveraged only for simpler self-assembled systems, provides unprecedented insight to molecular behavior of LNPs. We find using TR-SANS in combination with traditional SANS and small-angle x-ray scattering (SAXS) that as pH drops below the pKa of the ionizable lipid, internal structure becomes more disordered and molecular exchange of cholesterol between LNPs occurs at a much faster rate. The results give insight into the behavior enabling delivery and provide a quantifiable metric by which to compare formulations. Successful analysis of this multi-component system also expands the opportunities for using TR-SANS to characterize other complex biomaterials.
Cuidados de enfermería en paciente con trombosis venosa profunda I82 en fase de recuperación, un caso de estudio
Authors: Arevalo Marcos Rodolfo Amado , Brito Shuan Johanna , Huamancayo Bautista Xiomara , Marchena Abarca Dalila Rubi , Tapia Quispe Abrian Nilver
Published: October 2023

Introducción: El actual informe de caso clínico se reforzó empleando el método científico del lenguaje enfermero de tercera generación, vinculados a la taxonomía NANDA, la clasificación de intervenciones de enfermería (NIC) y la clasificación de resultados de enfermería (NOC). Objetivo: Aplicar cuidados de enfermería para que progrese el estado de salud del paciente con trombosis venosa profunda. Presentación del caso clínico: Paciente adulto mayor de 74 años, de sexo femenino con diagnóstico de trombosis venosa profunda. antecedentes de carcinoma de ovario, hace 1 años atrás culminó su tratamiento de quimioterapia y radioterapia. Método: estudio de caso único de enfoque cualitativo. Se utilizó como herramienta de valoración los once patrones funcionales de Marjory Gordon, para el tratamiento de datos las nomenclaturas taxonómicas de diagnósticos enfermeros 2021- 2023 de NANDA, NOC y NIC. Resultado: La evolución fue favorable, gracias a la ayuda de las intervenciones de los cuidados de enfermería, donde se proporcionaron toda atención fundamentada en los planes de cuidado individualizado, con el apoyo esencial de los familiares. Ya que, estuvieron pendiente de sus inicios de la enfermedad, hasta la recuperación de la persona, que en un inicio quiso abandonar el tratamiento, porque tenía miedo que su cáncer otra vez se había manifestado en otra parte del cuerpo, pero gracias al apoyo emocional de ellos, esto generó el deseo de querer mejorar su condición, pudiendo superar esos obstáculos y así obtener una evolución positiva en el tratamiento de su enfermedad.
Conclusiones: la aplicación del proceso de enfermería permitió la recuperación del paciente.
Targeted Subjective Activity as a Factor of Activation of Human Health Resources in the Health Care System
Authors:   Scientific Center for Arctic Studies, Semikin V. V. , Anisimov A. I. ,   Saint-Petersburg State Institute of Psychology and Social Work
Published: October 2023

The issue of the use of opportunities of a targeted subjective activity of a person to manage his or her own health within the state public health system is becoming extremely important nowadays. Based on the theoretical study and author’s own empirical and experimental studies the following conclusions have been made: to create a functioning system of state control over public health with optimal including of internal contour it is necessary to construct a methodological basis giving reasons for an opportunity to realize a targeted subjective activity on the part of a certain person; a central part of an internal contour of one’s own health management is a targeted subjective activity of a person that serves as a main means of health maintaining and is realized through activation of person’s vital resources.
Ethnopsychological Peculiarities of Economic Self-Determination of Mongol Entrepreneurs
Authors:   Irkutsk State University, Trofimova E. L. ,   Baikal State University, Terekhova T. A. ,   Irkutsk State University, Chalikova-Ukhanova M. V. ,   Baikal State University
Published: October 2023

The article presents investigations of the Irkutsk research school of economic ethnopsychology. Based on a theoretical and empirical analysis the author identified key factors of economic self-determination of small business individuals. The author conducted a cross-cultural study on the sampling of 161 people, 72 of whom were Mongol entrepreneurs doing their business in Ulan-Bator, and 89 of whom were Russian small business individuals from Irkutsk. The article presents the results of the empirical study, which has found that the most significant factors in the organization of economic self-determination are economic subjectivity, subjective economic well-being, entrepreneurship appeal, competitiveness, economic risk, value for money, scenarios of economic behavior, time-dependent prospects.
CINEMATOGRAPHY AS A DESCRIPTIVE PHILOSOPHY "ON THE CINEFILM" OF IMAGES OF HOMO: FROM THE FIXATION OF IMAGES (HOMO PHOTOGRAPHICUS) TO THE TREACHERY OF IMAGES (CONTEMPORARY HOMO VIDENS)
Authors: Korabliova Nadiia , Chmil Hanna
Published: October 2023

The article explores art of cinematography as an objectified cultural reality, in spatial and temporal structures of video description. Genesis of art of photography has changed the habits of human perception and thinking process – from photographic images of Homo photographicus to contemporary Homo Videns whose visual experience is the experience of appropriation and distancing from the world in its optical modality. The art of cinematography, correlating with metaphysical discourses of reality, creates a socio‐cultural code as a matrix of meanings and senses. It provides organization and support to the semiotic fund of culture through performing the functions of socialization and cultural integration. The differences between video description and philosophical text are emphasized. The advantage of video description is being devoid of the complexity of philosophical texts due to readability of indexes, demonstration of codes that define their sequence through the captured images‐characters close to everyday life to the extent that they do not require any analysis as being self‐obvious.

The magic function of screen image is that it has multiple reflections, so narrative of identity is transferred to the outer plane, onto the other side of the screen when the image created by the operator is a signal that triggers imagination. The indicative character is transferred to the image, and these indicators are indexed sufficiently to be stimulus signs, effects for Homo Videns’s perception. They are deciphered according to the standards and ideals of a particular culture whose codes are recognized by the subject of that culture at a particular moment which influences constitution and re‐constitution of Homo Videns who consumes both things and images – but also transformation of culture itself. Technological transformation of images of Homo Videns is due to changes in the technology of filming and cinematography which is an important segment of cultural history. Even if cameraman's skills do not directly determine movement of technical progress, they dwell on the achievements of technological revolutions. The choice of problematic fields of human images analysis as bound with evolution of rendering techniques and visualizations, today is more justified than the rationalization of these images.
MHD Flow and Heat Transfer of a Ternary Hybrid Ferrofluid Over a Stretching/Shrinking Porous Sheet with the Effects of Brownian Diffusion and Thermophoresis
Authors: Kopp Michael I. , Yanovsky Volodymyr V. , Anusha Thippeswamy , Mahabaleshwar Ulavathi S.
Published: October 2023

In this paper, the magnetohydrodynamic (MHD) flow of a ternary hybrid ferrofluid over a stretching/shrinking porous sheet in the presence of radiation and mass transpiration is studied. The ternary hybrid nanofluid is formed by suspending three types of nanoparticles for enhancing heat transfer. The nanoparticles of copper, (Cu) iron oxide (Fe3O4), and cobalt ferrite (CoFe2O4) are suspended in water in this study, producing in the combination Cu-Fe3O4-CoFe2O4-H2O. Brownian motion and thermophoresis are integrated into the ternary hybrid ferrofluid model. Similarity transformations convert the governing partial differential equations into ordinary differential equations. The boundary value problem (BVP) is used in the Maple computer software to solve transformed equations numerically. The computed results for relevant parameters such as velocity profile, temperature profile, skin friction coefficient, local Nusselt and Sherwood numbers are visually shown and explained in detail.
Structural Variations of Dust Acoustic Solitary Waves (DASWs) Propagating in an Inhomogeneous Plasma
Authors: Dehingia Hirak Jyoti , Deka P.N.
Published: October 2023

This paper presents our theoretical investigations on the structural variations of dust acoustic solitary waves (DASWs) in inhomogeneous unmagnetized plasmas. To study the structural variations of DASWs, we have considered collisionless, hot isothermal, and Boltzmannean distribution for electrons-ions with negatively charged dust grains in weakly inhomogeneous plasmas. We have used the reductive perturbation technique (RPT) in the governing equations of plasmas, derived the modified Korteweg-de-Vries (m‑KdV) equation, and obtained the solitary wave solution. We have considered the appropriate stretched coordinates for space and time variables for the inhomogeneous plasma. This paper investigates the effects of dust particles on ion-acoustic solitary waves' propagation in the inhomogeneous plasma model. We have also included the effect of inhomogeneity parameters on the soliton structures.
Preparation and Properties of ZrO2/SiC-H2O Nanofluids to Use for Energy Storage Application
Authors: Hashim Ahmed , Rashid Farhan Lafta , Al-Aaraji Noor Al-Huda , Rabee Bahaa H.
Published: October 2023

More than half of the energy used in total comes in the form of heat energy. An essential environmental protection technique to increase energy efficiency is learning how to employ thermal energy storage (TES) technology to fully use intermittent and unstable heat, such as solar heat utilization and industrial waste heat. Sensible heat storage, latent heat storage, and thermochemical heat storage are all types of thermal energy storage. This work describes the creation of ZrO2/SiC-H2O nanofluids and their characteristics for use in energy storage applications. Results reveal that increasing the concentration of ZrO2/SiC NPs from 0.3 gm/L to 1.2 gm/L at photon wavelength (=380nm) increased absorbance by roughly 83.7% and reduced transmittance by 81.2%. Additionally, when ZrO2/SiC NP concentrations rise, the absorbance rises as well, indicating improved nanofluid dispersion. Additionally, when the concentration of ZrO2/SiC NPs reached 1.2gm/L, the electrical conductivity of ZrO2/SiC-H2O nanofluids improved by nearly 74%, and the melting time reduced with an increase in the concentration of ZrO2/SiC nanoparticles.
Preparation of Nanofluids from Inorganic Nanostructures Doped PEG: Characteristics and Energy Storage Applications
Authors: Hashim Ahmed , Rashid Farhan Lafta , Abbas M.H. , Rabee Bahaa H.
Published: October 2023

Polymeric nanocomposites have drawn a lot of interest when it comes to innovative materials because of their enhanced optical, electrical, and magnetic properties. These materials have a high rising modulus, are flame resistant, and may also halt oxidation and agglomeration. These improvements in properties are related to interactions between nanoparticles and polymers. The addition of nanoparticles to polymers prolongs their life, changes their surface via passivation defect levels, and provides low cost, simple device manufacture, as well as adjustable electrical and optical properties. This study examines the properties and potential uses of nanofluids made from inorganic nanostructures doped with PEG. The results demonstrate that when the concentration of ZrO2/SiC NPs increased to 12wt%, the electrical conductivity of nanofluids increased by roughly 43.6%. Additionally, when the concentration of ZrO2/SiC nanoparticles increases, the melting time reduces. Additionally, when the concentration of ZrO2/SiC NPs increases from 3 weight percent to 12 weight percent within 15 minutes, the growth of melting time reaches 51.2%, and the absorbance increases by approximately 80.3% while transmittance decreases by about 82.5%.
Vortex Dynamo in Rotating Media
Authors: Kopp Michael I. , Yanovsky Volodymyr V.
Published: October 2023

The review highlights the main achievements in the theory of the vortex dynamo in rotating media. Various models of a vortex dynamo in rotating media are discussed: a homogeneous viscous fluid, a temperature-stratified fluid, a moist atmosphere, and a stratified nanofluid. The main analytical and numerical results for these models obtained by the method of multiscale asymptotic expansions are presented.  The main attention is paid to models with a non-spiral external force. For a rotating moist atmosphere, characteristic estimates of the spatial and temporal scales of the generated vortex structures are obtained. New effects of the vortex dynamo in a rotating stratified nanofluid, which arise due to thermophoresis and Brownian motion of nanoparticles, are shown. The results of the analysis of the nonlinear equations of the vortex dynamo in the stationary regime are presented in the form of spiral kinks, periodic nonlinear waves, and solitons.
A Study of the Weakly Bound Structure of Nuclei Around the Magic Number N=50
Authors: Obaid Ruwaida S. , Alzubadi Ali A.
Published: October 2023

An investigation of the quadrupole deformation of Kr, Sr, Zr, and Mo isotopes has been conducted using the HFB method and SLy4 Skyrme parameterization. The primary role of occupancy of single particle state 2d5/2 in the existence of the weakly bound structure around N=50 is probed. Shell gaps are performed using a few other calculations for the doubly magic number 100Sn using different Skyrme parameterizations. We explore the interplays among neutron pairing strength and neutron density profile in two dimensions, along with the deformations of 100Sn.
Computation of Characteristics of C IV Transitions
Authors: Saeed Muhammad , Ur Rehman Shafiq , Khan Mahwish Mobeen , Uddin Zaheer
Published: October 2023

In this research, we computed transition probabilities, line strength, and oscillator strengths of more than 5000 transitions in C IV. Very few values of these spectroscopic characteristics were previously known and reported. The calculation method, based on a combination of the weakest bound electron model and numerical approximation, shows reliable values because the correlation between known and calculated values is high. The transition probabilities calculated in this work are compared with known values of the NIST database and those found in literature, and a reasonably good agreement has been observed. The lifetime of Rydberg levels ns, np, nd, nf, ng has been reported up to n = 25. A general sixth-degree polynomial was developed, generating C IV lifetimes with reasonable accuracy. Most of the results presented are new.
Experimental Simulation for Two Optically Filtered Modulation Weights in Laser Diode as a Self-Learning Layer
Authors: Madhloom Dhuha Raad , Hemed Ayser A. , Khorsheed Suha Musa
Published: October 2023

In this study, the response of a nonlinear laser medium is experimentally studied. In the study, a hybrid version of the input layer that multiplies optically and accumulates electrically is compared with a wholly optical version that multiplies and accumulates optically. This medium is subjected to two different paths of optically filtered and attenuated feedback. With such a system, the variation of feedback weight in one of them is tested in correspondence to the second one. Observations for frequency spectra are carried out to simulate the resultant response with an input layer for a neural network based on chaotic carriers. Chaotic laser emission was observed as a function of several control parameters, which are D.C. bias voltage, branch optical attenuation, and feedback strengths based on filtration with fiber Bragg grating. This learning rule is linear in the difference between each input and output of a neuron. This is an enhancing/inhibiting rule. The thresholds are adjusted in such a way that the output of the neuron is either pushed in the same direction as the input (enhancing) or pushed in the opposite direction (inhibiting).
The Effects of Thermal Stratification on Flow Past an Infinite Vertical Plate in Presence of Chemical Reaction
Authors: Nath Rupam Shankar , Deka Rudra Kanta
Published: October 2023

This study examines how thermal stratification affect the movement of a fluid in presence of first order chemical reaction past an infinite vertical plate. To solve the non-dimensional governing equations in closed form for Pr = 1, the Laplace’s transform system is applied. Significant findings resulting from stratification are compared to the case of no stratification. The effects of many parameters, including S, K, Gr, Gc, Sc and time on velocity, temperature, concentration, skin friction, Nusselt number, and Sherwood number are explored and graphically displayed. It is shown that the steady state is attained at shorter times as a result of the application of stratification on the flow.
Permittivity Model Selection Based on Size and Quantum-Size Effects in Gold Films
Authors: Riabenko Iuliia , Shulga Sergey , Makarovskii Nikolai А. , Beloshenko Konstantin
Published: October 2023

The article is focused on optical properties of nanostructures containing spherical gold nanoparticles of various radii. We explore correlation between the particle radius and the choice of permittivity model applied to describe optical absorption spectra of gold granules. The experiments show splitting of the absorption band of granular gold films to form a second absorption peak. The first peak is associated with the phenomenon of plasmon resonance, while the second one reflects quantum hybridization of energy levels in gold. Quantum effects are shown to prevail over size effects at a granule diameter of about 5-6 nm. The Mie theory gives a rigorous solution for the scattered electromagnetic field on a sphere taking into account optical properties of the latter, however, it does not specify the criteria for selecting a model to calculate dielectric permittivity. Both calculations and experiments confirm the limiting diameter of gold nanoparticles where the Hampe-Shklyarevsky model is applied. Meanwhile, this model is still unable to predict the splitting of the plasma absorption band. The data presented in the article can be used for a predetermined local field enhancement in composite media consisting of a biolayer and metal nanoparticles. The conducted research provides a deeper understanding of the influence of a terahertz high-intensity electromagnetic field localized in the space on quantum dots.
Influence of Lead Nanoparticles on Structural, Morphological, and Mechanical Characteristics of (SiR-PU/Micro-Pb) Composites and Radiation Shielding Applications
Authors: Naeem Mousa Hawan , Al-Nesrawy Sameer Hassan Hadi , Al-Maamori Mohammed H.
Published: October 2023

This research includes the manufacture of a polymeric nanocomposite consisting of silicone rubber/polyurethane as a base, with the addition of the first filler of micro-lead with a ratio of 300 pphr and the second filler of nano-lead with different ratios (0, 0.2, 0.4, 0.6, 0.8 pphr). With the addition of hexane (liquid state) to the superposition using the casting technique at room temperature. The structural properties of the surfaces of the samples were measured using Fourier transformation spectroscopy (FT-IR) and the scanning electron microscope (SEM). In addition to studying the mechanical properties represented by each hardness, tensile, elongation, and elastic modulus. (FT-IR) showed the absence of a chemical reaction for all samples. While SEM measurements showed a homogeneous distribution of micro-lead and nano-lead in the presence of hexane equally, and there were no voids in the eyes of the prepared rubber equally. For the mechanical properties, we see that the hardness, tensile strength and modulus of elasticity continue to improve with the increase in the number of lead nanoparticles. And a decrease in elongation as a result of inverse proportion to the modulus of elasticity. From the results obtained, this composite can be used in gamma ray attenuation applications in shielding, especially in medical and industrial fields.
Chaos Synchronization of InGaAsP Lasers
Authors: Al-Jassani Mohammed H.H. , Faris Aqeel I. , Khudhur Hussein H.
Published: October 2023

The optical output of a semiconductor laser can fluctuate chaotically by modulating its direct current in limited conditions of the modulated current signal parameters in terms of modulation frequency and modulation index. In this work, single, double, and chaotic pulses of an InGaAsP laser with direct current modulation, are numerically presented through a bifurcation diagram. Numerically, the unidirectional optical coupling system realizes chaotic synchronization between two identical InGaAsP lasers with direct current modulation, as the transmitter/receiver configuration. The transmission time for transmitting light from the transmitted laser to the received laser is essential for controlling the quality of chaos synchronization. The transmission time applies on the order of nanoseconds. Chaos synchronization quality is estimated by a correlation plot and calculated by the cross-correlation coefficient. This study observed the best synchronization quality (complete chaos synchronization) when the two lasers are identical. On the other hand, the chaotic synchronization between two non-identical InGaAsP lasers was investigated. In this case, complete chaos synchronization is not found, and the quality of chaotic synchronization was observed to decrease as the mismatch between the parameters of the two lasers increased.
Brechas en la atención primaria en salud mental en Chocó, Colombia: barreras y desafíos
Authors: Agudelo-Hernández Felipe , García Cano Juan Fernando , Salazar Vieira Luz María , Vergara Palacios Wendy , Padilla Mónica , Moreno Mayorga Bibian
Published: October 2023

Objetivo.

Describir barreras y desafíos en la implementación del Programa de Acción Mundial para Reducir las Brechas de Atención en Salud Mental mhGAP, y determinar la asociación entre facilitadores de implementación, accesibilidad, aceptabilidad y supervisión, en Chocó, Colombia.

Métodos.

Estudio evaluativo de corte transversal, con métodos mixtos y secuenciales. Se contó con la participación de 41 personas (30 correspondientes a personal de salud y 11 personas del área administrativa). Se conformaron cinco grupos focales, en el marco de la formación en mhGAP. Se usó la escala de impulsores de implementación, que determinó factores como: facilitadores del sistema para la implementación, accesibilidad de la estrategia, adaptación y aceptabilidad, formación y supervisión en la estrategia. También se realizaron entrevistas semiestructuradas, con un posterior análisis temático.

Resultados.

Se encontró una correlación estadísticamente significativa entre los componentes de la implementación, lo cual fue reafirmado con la información de las entrevistas. A nivel de las barreras seÑaladas, se destacan factores como dispersión, conflicto armado, la dificultad para cambiar la perspectiva de la zona en la que se vive y los problemas administrativos para acceder a los tratamientos. Estos factores se abordan en una propuesta de ruta de atención.

Conclusiones.

En mhGAP en el departamento del Chocó, pese a una adecuada aceptabilidad, acceso y supervisión, se evidencian barreras y desafíos de orden social, geográfico, político, cultural y a nivel de la administración en salud, que podrían ser superados con la implementación de rutas intersectoriales de recuperación, construidas desde el mismo territorio.
The effect of plant growth regulators, carbon sources and gelling agent on the
callus regeneration of Malaysian rice MR219 (Oryza sativa L.)
Authors: Md Saad N. , Teo C.H. , Ab Rahman Z. , Zainal Z.
Published: October 2023

The development of a highly efficient tissue culture system for indica rice is crucial to
speed up the implementation of gene editing in breeding programmes as well as to explore
the roles of indica genes. However, because indica rice types are recalcitrant to in vitro
response, there are only a few reports on the successful transformation process on indica
rice due to recalcitrant response to in vitro response. The present study attempted to
identify the effects of plant growth regulator (PGR), carbon sources and different
concentrations of gelling agent on embryogenic callus induction and rice regeneration of
Oryza sativa var MR219. The PGR used were 1 or 2 mg/L 6-benzylaminopurine (BAP)
and 1-Naphthaleneacetic acid (NAA) and the carbon sources were 30 g/L sucrose and
maltose. Three different gelling agent concentrations (3 mg/L, 6 mg/L or 9 mg/L) were
evaluated. The highest frequency of friable callus induction (87%) was observed in callus
induction media (CI) containing Murashige and Skoong media (MS) supplemented with 3
mg/L 2,4-dichlorophenoxy acetic acid (2,4-D) and 0.3 mg/L kinetin. Histological studies
of the calli showed the presence of embryogenic calli with small intercellular spaces
compared to non-embryogenic areas which developed on the hormone MS media. The
highest regeneration frequency (50%) was achieved when friable calli were cultured on
MS medium containing 3% sucrose, 1 mg/L BAP, and 1 mg/L NAA with 9% phytagel.
The callus grown on sucrose media showed the highest number (66.13%) of albino
plantlets, while the number of albino plantlets on maltose media was smaller (20%). In
conclusion, this optimised mature embryo-derived callus of MR219 rice is responsive to
regeneration and could be amenable to genetic transformation studies.
The Impact of Board Diversity on the Relationship Between Shareholders Wealth and Un-Compulsory Disclosure in Jordanian Commercial Banks
Authors: Karajeh Ahmad Ibrahim , Jaradat Amani Qassim
Published: October 2023

Purpose:  This study aims to examine the association between un-compulsory disclosure and shareholders wealth among Jordanian banks. Moreover, it investigates the effect of the board diversity on the relationship between un-compulsory disclosure and shareholders wealth.
 
Theoretical framework:  Prior studies have reported that board diversity plays an important role in taking decisions like disclosing more information or distributing earnings. Despite the importance of board diversity, there is no study used as moderating variable to investigate the relationship between un-compulsory disclosure and shareholders wealth.
 
Design/methodology/approach:  This study covers all commercial banks listed on Amman Bursa. It has used checklist instrument to measure the level of un-compulsory disclosure; return on equity and market value to measure shareholders wealth; and board nationality and female on board of directors to measure the diversity. Hierarchical regression analysis was used to achieve the objectives.
 
Findings:  The findings show that banks with high shareholders wealth are more likely to reveal un-compulsory information to help stakeholders. Furthermore, this study provides creative evidence that female members play a main role as moderating variable that influence management motivations toward practices of un-compulsory disclosure and shareholders wealth.
 
Research, Practical & Social implications:  This study suggests that regulatory bodies issue and develop the current code about the diversity of the board, especially more female representation on boards.
 
Originality/value:  this study provides creative evidence that female members play a main role as moderating variable that influence management motivations toward practices of un-compulsory disclosure and shareholders wealth.
EFL Students' Attitude Towards English Lessons Through Indonesia’s Merdeka Curriculum
Authors: Sitohang Caecilia Adinda Rosa , Tarigan Karisma Erikson , Ginting Fiber Yun
Published: October 2023

The purpose of this study was to examine the attitudes of students towards English lessons within the context of the Merdeka curriculum. Specifically, the study aimed to investigate the impact of the Merdeka curriculum on students' attitudes towards English lessons, as well as identify the factors that contribute to students' positive attitudes towards the Merdeka curriculum at SMA Swasta Katolik Tri Sakti Medan. The analysis of qualitative data revealed that students exhibited favorable attitudes towards English lessons within the Merdeka curriculum. Specifically, in the cognitive component, the findings indicated that 62% of students held positive attitudes, 18% held negative attitudes, and 20% remained neutral. In the affective component, 53% of students displayed positive attitudes, while 22% exhibited negative attitudes and 25% maintained a neutral stance. Lastly, the conative component demonstrated that 59% of students showcased positive attitudes, 14% displayed negative attitudes, and 27% remained neutral. The present study employed qualitative data collection methods. The findings indicated that a majority of the student population, specifically 146 out of 197 students, expressed contentment in their English language learning endeavors. It was observed that certain factors contributed to the cultivation of positive attitudes among students towards English lessons. Firstly, students exhibited a preference for English lessons. Additionally, the presence of an engaging, knowledgeable, and perceptive subject teacher played a crucial role in creating an enjoyable learning environment. The impact of pupils' positive attitudes on their learning achievements is significant.
Use Of Jacobs ESL Composition Profile to Evaluate University Students’ Writing
Authors: Tiwari Hari Prasad
Published: October 2023

A teacher should have an access to a reliable soring rubric in order to assess the ESL/ EFL (English as a Second Language/ English as a Foreign Language) students' writing abilities accurately. One of the most widely used tools for assessing writing skills of non-native speakers of English is Jacobs ESL Composition Profile which can help teachers tailor their instruction to better meet the needs of their students. The present study attempts to determine the internal consistency between teachers i.e. raters who use Jacob’s Scoring Rubric (SR) to evaluate students' essays, describe the level of students' writing performance as measured by the Jacob’s SR, and describe teachers' viewpoints while using the profile. The research utilizes descriptive quantitative research design. The participants consisted of two ESL/EFL teachers who have been teaching and testing writing at bachelor’s level for more than five years and 40 fourth year ESL/ EFL students studying at undergraduate level at Madhypaschim Multiple Campus, Nepalgunj Banke, Nepal. The researchers used judgmental sampling to select the participants of the study. The teachers were instructed to score 40 essays written by fourth-year students. The finding revealed High internal consistency (r = 0.86, α = 0.00 < 0.05) between TA and TB when assessing student essays using the Jacobs ESL Composition Profile. In addition, the Cronbach alpha analysis reveals a value of 0.918, which suggests a high degree of consistency. The writing performance of students was found to be in four categories:  very good (3.75 %), good (52.5 %), satisfactory (36.5 %)   and acceptable (7.5 %). The outcome of the research demonstrates that the Jacobs ESL Composition Profile remains reliable for essay scoring, even though proficiency and experience are necessary due to its comprehensive guidelines.