bluuebunny/crossref_metadata_2025 huggingface dataset:
Kazak Atasözleri Penceresinden Modern Ulus Kimlikler
Authors: BAYRAM Bülent
Published: January 2024

Kaynaklarda Türkistan, Turan, Orta Asya, Merkezî Asya gibi farklı adlandırmalarla kaydedilen coğrafyada var olan modern ulus kimliklerin karşılıklı ilişkileri, farklı açılardan incelenmeye değer bir

konudur. Resmî tarih yazımı, edebiyat tarihi, şekillenmiş edebî dil sorunlu olmakla birlikte çizilmiş siyasi sınırlara dayalı biçimde kurulmuş olan ulus devletlerin ve dolayısıyla çoğunluğunu Türk

boylarının oluşturduğu modern kimliklerin arasında günümüzde keskin çizgiler mevcuttur. Makalede Kazak atasözlerinde Özbek, Sart, Rus, Tatar, Türkmen başta olmak üzere diğer topluluklarla

ilgili kayıtlar; tarihî süreç de dikkate alınarak günümüze yansımaları çerçevesinde değerlendirilmiştir. Günümüzde keskin çizgileri ortaya çıkaracak bir bakış açısının Kazak atasözleri temelinde desteklenip desteklenmediği sorusu çerçevesinde bir değerlendirme yapılmıştır. Makalenin temel amacı keskin ulus kimliklerin ortaya çıkışına sebep olan bakış açılarının atasözlerine yansıyıp yansımadığı sorusuna cevap aramaktır. Makalenin temel malzemesini yayımlanmış atasözleri oluşturmaktadır. Çalışmada alan araştırması çerçevesinde derlenen malzemeler kullanılmamakla birlikte etnografik yönteme dayalı gözlemlerden istifade edilmiştir.
20. Yüzyılın İkinci Yarısında Azerbaycan ve Özbek Şiirinin Millî İdeolojik Yönden Karşılaştırılması
Authors: HEŞİMOVA Terane
Published: January 2024

Azerbaycan ve Özbek Türklerinin edebî ve kültürel ilişkileri eski bir tarihe, köklü geleneklere sahiptir. İbn Sina, Harezmî, Buhârî, Uluğ Bey, Ali Şîr Nevaî gibi tanınmış şahsiyetlerin isimleri Azerbaycan’da büyük bir saygıyla anılmakta, Kağanî, Nesîmî ve Fuzûlî’yi Özbek halkı kendi şairleri gibi okumaktadır. Çalışmamızda, 20. yüzyılın ikinci yarısında Azerbaycan ve Özbek edebiyatında Sovyet yönetiminin yasaklamaya çalıştığı millî, tarihî ve Türk birliği temaları üzerine şiirlerde, konu ve fikir benzerlikleri ele alınacaktır. 1950’lerde Stalin’in ölümünden sonra ve dünya edebiyatındaki yenilenme süreçlerinin etkisiyle Azerbaycan ve Özbek edebiyatında üstü kapalı şekilde millî konular ele alınmaya başlandı. Makalede, bu dönemde millî şiiri esaretten kurtarma yolunda kalemleriyle savaşan Bahtiyar Vahapzade, Halil Rıza, Fikret Koca, Erkin Vahidov, Abdulla Oripov, Cemal Kemal’in şiirlerindeki, manzumelerindeki ortak konular, ülkü ve fikir benzerlikleri, edebî etki, esinlenme gibi konular gözden geçirilmiş, Sovyet yönetimine karşı direnişlerden söz edilmiştir.
Tarihi Rus Haritalarında Osmanlı Devleti (1700-1917) [The Ottoman Empire in Historical Russian Maps (1700-1917)]. Author of text Mikhail Bashanov, transl. and ed. by İlyas Kemaloğlu, TDBB, 2023.
Authors: KUZAKÇI Başak
Published: January 2024

Tarihi Rus Haritalarında Osmanlı Devleti (1700-1917) [The Ottoman Empire in Historical Russian Maps (1700-1917)]. Author of text Mikhail Bashanov, transl. and ed. by İlyas Kemaloğlu, TDBB, 2023.
Effect of health education based on information-motivation-behavioral skills model on patients with unilateral vestibular dysfunction
Authors: Shi Qiong , Wu Ruo-Jun , Liu Jiang
Published: January 2024

BACKGROUND

Vestibular dysfunction (VH) is a common concomitant symptom of late peripheral vestibular lesions, which can be trauma, poisoning, infection, heredity, and neurodegeneration, but about 50% of the causes are unknown. The study uses the information-motivation-behavioral skills (IMB) model for health education, effectively improve the quality of life, increase their self-confidence, reduce anxiety and depression, and effectively improve the psychological state of patients.

AIM

To explore the effect of health education based on the IMB model on the degree of vertigo, disability, anxiety and depression in patients with unilateral vestibular hypofunction.

METHODS

The clinical data of 80 patients with unilateral vestibular hypofunction from January 2019 to December 2021 were selected as the retrospective research objects, and they were divided into the control group and the observation group with 40 cases in each group according to different nursing methods. Among them, the control group was given routine nursing health education and guidance, and the observation group was given health education and guidance based on the IMB model. The changes in self-efficacy, anxiety and depression, and quality of life of patients with unilateral VH were compared between the two groups.

RESULTS

There was no significant difference in General Self-Efficacy Scale (GSES) scale scores between the two groups of patients before nursing (P > 0.05), which was comparable; after nursing, the GSES scale scores of the two groups were higher than those before nursing. The nursing group was higher than the control group, and the difference was statistically significant (P < 0.05). There was no significant difference in the scores of Hospital Anxiety and Depression Scale (HADS) and anxiety and depression subscales between the two groups before nursing (P > 0.05). After nursing, the HADS score, anxiety, and depression subscale scores of the two groups of patients were lower than those before nursing, and the nursing group was lower than the control group, and the difference was statistically significant (P < 0.05). After nursing, the Dizziness Handicap Inventory (DHI) scale and DHI-P, DHI-E and DHI-F scores in the two groups were decreased, and the scores in the nursing group were lower than those in the control group, and the difference was statistically significant (P < 0.05).

CONCLUSION

Health education based on the IMB model can effectively improve patients' quality of life, increase self-efficacy of patients with unilateral vestibular hypofunction, enhance patients' confidence, enable patients to resume normal work and life as soon as possible, reduce patients' anxiety and depression, and effectively improve patients' psychological status.
SNR of a combined mode-locked fiber laser generating conventional and dissipative solitons
Authors: Qian Xinlei , Kong Yong , Jiao Yanhong , Wang Yifan
Published: January 2024

In this paper, we utilized a combined mode-locked fiber laser including a saturable absorber mirror (SESAM) and nonlinear polarization evolution (NPE) to generate conventional solitons (CSs) and dissipative solitons (DSs), respectively, in order to investigate the difference in signal-to-noise ratio (SNR) between the outputs of these two types of solitons in artificial and natural saturators. Both simulation and experimental results demonstrated that, under the shared pump power, the DSs from the NPE-based mode-locked fiber output exhibited a higher SNR of approximately 60 dB, compared to the CSs from the SESAM-based mode-locked fiber output of 45 dB. Furthermore, we conducted theoretical analysis of these results. We believe that this work can provide new approaches for SNR improvement research in the fields of passively mode-locked fiber lasers.
Wide-angle passive beam steering using 3D modified partial Maxwell fisheye lens
Authors: Fessaras Theodore , Nicholson Kelvin , Gong Wiley , Mirotznik Mark
Published: January 2024

This study presents a broadband, 3D gradient index beam-steering lens, derived from an optimized modification of the partial Maxwell fisheye (PMFE) design, achieving a boresight gain of 23 dBi, -80° to 80° beam steering, and <10 dB gain roll-off. Utilizing fused filament fabrication (FFF) to realize its intricate geometry, the design employs a novel polar space-filling curve (PSFC) to establish a 3D varying, effective permittivity distribution. Rigorous simulations and experimental validation attest to its effectiveness, marking the first 3D implementation of a PMFE-type lens to our knowledge. This research underscores the feasibility and diverse applications of a low-cost, wide-angle passive beam-steering dielectric lens.
Multiplexed Processing of Quantum Information Across an Ultra-wide Optical Bandwidth
Authors: Pe'er Avi , Eldan Alon , Gilon Ofek , Lagemi Asher , Fishman-Furman Elai
Published: January 2024

Protocols of quantum information processing are the foundation of quantum technology, allowing to share secrets at a distance for secure communication (quantum key distribution), to teleport quantum states, and to implement quantum computation. While various protocols have already been realized, and even commercialized, the throughput and processing speed of standard protocols is generally low, limited by the narrow electronic bandwidth of the measurement apparatus in the MHz-to-GHz range, which is orders-of-magnitude lower than the optical bandwidth of available quantum optical sources (10-100 THz). We present a general concept and methods to process quantum information in parallel over multiplexed frequency channels using parametric homodyne detection for measurement of all the channels simultaneously, thereby harnessing the optical bandwidth for quantum information in an efficient manner. We exemplify the concept through two basic protocols: Multiplexed Continuous-Variable Quantum Key Distribution (CV-QKD) and multiplexed continuous-variable quantum teleportation. We demonstrate the multiplexed CV-QKD protocol in a proof-of-principle experiment, where we successfully carry out QKD over 23 uncorrelated spectral channels, with capability to detect eavesdropping in any channel. These multiplexed methods (and similar) will enable to carry out quantum processing in parallel over hundreds of channels, potentially increasing the throughput of quantum protocols by orders of magnitude.
Transposon dynamics in the emerging oilseed crop Thlaspi arvense
Authors: Contreras-Garrido Adrián , Galanti Dario , Movilli Andrea , Becker Claude , Bossdorf Oliver , Drost Hajk-Georg , Weigel Detlef
Published: January 2024

Genome evolution is partly driven by the mobility of transposable elements (TEs) which often leads to deleterious effects, but their activity can also facilitate genetic novelty and catalyze local adaptation. We explored how the intraspecific diversity of TE polymorphisms might contribute to the broad geographic success and adaptive capacity of the emerging oil crop Thlaspi arvense (field pennycress). We classified the TE inventory based on a high-quality genome assembly, estimated the age of retrotransposon TE families and comprehensively assessed their mobilization potential. A survey of 280 accessions from 12 regions across the Northern hemisphere allowed us to quantify over 90,000 TE insertion polymorphisms (TIPs). Their distribution mirrored the genetic differentiation as measured by single nucleotide polymorphisms (SNPs). The number and types of mobile TE families vary substantially across populations, but there are also shared patterns common to all accessions. Ty3/Athila elements are the main drivers of TE diversity in T. arvense populations, while a single Ty1/Alesia lineage might be particularly important for transcriptome divergence. The number of retrotransposon TIPs is associated with variation at genes related to epigenetic regulation, including an apparent knockout mutation in BROMODOMAIN AND ATPase DOMAIN-CONTAINING PROTEIN 1 (BRAT1), while DNA transposons are associated with variation at the HSP19 heat shock protein gene. We propose that the high rate of mobilization activity can be harnessed for targeted gene expression diversification, which may ultimately present a toolbox for the potential use of transposition in breeding and domestication of T. arvense.
An anti-occlusion optimization algorithm for multiple pedestrian tracking
Authors: Zhang Lijuan , Ding Gongcheng , Li Guanhang , Jiang Yutong , Li Zhiyi , Li Dongming
Published: January 2024

Frequent occlusion of tracking targets leads to poor performance of tracking algorithms. A common practice in multi-target tracking algorithms is to re-identify the occluded tracking targets, which increases the number of identity switching occurrences. This paper focuses on online multi-object tracking and designs an anti-occlusion, robust association strategy, and feature extraction model. Specifically, the least squares algorithm and the Kalman filter are used to predict the trajectory of the tracking target, while the two-way self-attention mechanism is employed to extract the features of the tracking target, as well as positive and negative samples. After the tracking target is occluded, the association strategy is used to assign the identity information from before the occlusion. The experimental results demonstrate that the algorithm proposed in this paper has achieved excellent tracking performance on the MOT dataset.
Socioeconomic disparities in risk of financial toxicity following elective cardiac operations in the United States
Authors: Romo Valenzuela Alberto , Chervu Nikhil L. , Roca Yvonne , Sanaiha Yas , Mallick Saad , Benharash Peyman
Published: January 2024

Background

While insurance reimbursements allay a portion of costs associated with cardiac operations, uncovered and additional fees are absorbed by patients. An examination of financial toxicity (FT), defined as the burden of patient medical expenses on quality of life, is warranted. Therefore, the present study used a nationally representative database to demonstrate the association between insurance status and risk of financial toxicity (FT) among patients undergoing major cardiac operations.

Methods

Adults admitted for elective coronary artery bypass grafting (CABG) and isolated or concomitant valve operations were assessed using the 2016–2019 National Inpatient Sample. FT risk was defined as out-of-pocket expenditure >40% of post-subsistence income. Regression models were developed to determine factors associated with FT risk in insured and uninsured populations. To demonstrate the association between insurance status and risk of FT among patients undergoing major cardiac operations.

Results

Of an estimated 567,865 patients, 15.6% were at risk of FT. A greater proportion of uninsured patients were at risk of FT (81.3 vs. 14.8%,p<0.001), compared to insured. After adjustment, FT risk among insured patients was not affected by non-income factors. However, Hispanic race (Adjusted Odds Ratio [AOR] 1.60), length of stay (AOR 1.17/day), and combined CABG-valve operations (AOR 2.31, allp<0.05) were associated with increased risk of FT in the uninsured.

Conclusion

Uninsured patients demonstrated higher FT risk after undergoing major cardiac operation. Hispanic race, longer lengths of stay, and combined CABG-valve operations were independently associated with increased risk of FT amongst the uninsured. Conversely, non-income factors did not impact FT risk in the insured cohort. Culturally-informed reimbursement strategies are necessary to reduce disparities in already financially disadvantaged populations.
Nutrition knowledge and health vulnerability of mothers of pre-school children in north-central, Nigeria
Authors: Omachi Bosede Alice , van Onselen Annette , Kolanisi Unathi
Published: January 2024

Objective

This study explores the contribution of nutrition knowledge to the health status of pre-school children’s mothers in Niger State, North-Central, Nigeria.

Design

The study is a descriptive cross-sectional design using a quantitative data collection method.

Setting/participants

A multi-stage sampling technique was used to recruit 450 mothers of pre-school children across Niger state, Nigeria. Chi-square and linear regression were used to test the level of statistical significance (at p < 0.05). Socioeconomic and demographic information, anthropometric indices and nutrition knowledge were obtained using semi-structured questionnaires. Feeding patterns were also assessed using a qualitative 7-day dietary recall.

Result

The results showed that the majority (63.8%) of the mothers were within 26–35 years, and more than half (51.6%) of the mothers lacked knowledge of a “balanced diet”. Fruits, vegetables, and dairy products were the least consumed food group among the mothers (7.1% and 9.1%, respectively). Place of residence, occupation, and method of waste disposal were significantly associated with maternal minimum dietary diversity adequacy (p<0.05). Over half (57.6%) of the mothers were within the normal BMI range, and the mean waist/hip ratio was 0.82± 0.08. Social media/online was the most (36.4%) explored source of nutrition information among the mothers. This study shows no significant association between nutrition knowledge and adequacy of minimum dietary diversity among the mothers of preschool children (p = 0.09, χ2 = 13.682).

Conclusion

Dietary diversity among mothers was associated with the socioeconomic status and BMI of the mothers, which were strong determinants of meal quality and health outcomes in Nigeria and other developing countries experiencing food insecurity.
Reactions to macro-level shocks and re-examination of adaptation theory using Big Data
Authors: Greyling Talita , Rossouw Stephanié
Published: January 2024

Since 2020, the world has faced two unprecedented shocks: lockdowns (regulation) and the invasion of Ukraine (war). Although we realise the health and economic effects of these shocks, more research is needed on the effect on happiness and whether the type of shock plays a role. Therefore, in this paper, we determine whether these macro-level shocks affected happiness, how these effects differ, and how long it takes for happiness to adapt to previous levels. The latter will allow us to test whether adaptation theory holds at the macro level. We use a unique dataset of ten countries spanning the Northern and Southern hemispheres derived from tweets extracted in real-time per country. Applying Natural Language Processing, we obtain these tweets’ underlying sentiment scores, after which we calculate a happiness score (Gross National Happiness) and derive daily time series data. Our Twitter dataset is combined with Oxford’s COVID-19 Government Response Tracker data. Considering the results of the Difference-in-Differences and event studies jointly, we are confident that the shocks led to lower happiness levels, both with the lockdown and the invasion shock. We find that the effect size is significant and that the lockdown shock had a bigger effect than the invasion. Considering both types of shocks, the adaptation to previous happiness levels occurred within two to three weeks. Following our findings of similar behaviour in happiness to both types of shocks, the question of whether other types of shocks will have similar effects is posited. Regardless of the length of the adaptation period, understanding the effects of macro-level shocks on happiness is essential for policymakers, as happiness has a spillover effect on other variables such as production, safety and trust.
A contemporary class structure: Capital disparities in The Netherlands
Authors: Vrooman J. Cok , Boelhouwer Jeroen , Gijsberts Mérove
Published: January 2024

The academic and public debate on social inequality has recently been fuelled by large disparities in income and wealth, profound changes in the labour market, and other emerging cleavages in post-industrial societies. This article contributes to the discussion by arguing that class divisions are theoretically based on four types of capital: people’s economic means, their social capital, their cultural resources, and the combination of their health and attractiveness (‘person capital’). From this premise, the social structure of the Netherlands is examined. A dedicated survey was linked to microdata from the national population register, tax authorities and benefit agencies. Using latent class analysis, we assess contingencies in the distribution of the different resources, and identify a structure consisting of six capital groups. The established upper echelon (15.5% of the adult population) has the most capital, followed by the privileged younger people (12.7%), the employed middle echelon (26.9%) and the comfortable retirees (16.6%). Total capital is lowest among the insecure workers (13.5%) and the precariat (14.8%). Each social class has a distinctive mix of the four types of capital, highlighting the need to look beyond economic differences in order to comprehend structural inequality. The results of this study also indicate that resource disparities between classes coincide with other forms of social hierarchy and contrasts by age. Moreover, the contemporary class structure is associated with divergent views and experiences among the Dutch. Classes with little capital tend to rate politics, society, and their own social position more negatively. In addition, they value self-enhancement and hedonism less than today’s upper classes and report lower levels of well-being.
Methodology of data generation and calculation of erosion rates applied to littoral areas: Evolution of the Andalusian shoreline on exposed beaches during the 21st century (2001-2019)
Authors: Prieto Campos Antonio , Ojeda Zújar José
Published: January 2024

This paper describes the methodology used for the data collection and calculation of erosion rates and presents the recent results for the period 2001-2019 for all the beaches of the Andalusian shoreline. This period is divided into two subperiods (2001-2011 and 2001-2019) to detect possible trend changes during the study years. The proxy corresponding to the internal limit of the backshore has been used, which is very useful for medium to long-term coastal erosion rates. The results show the rates calculated for this proxy, which reveal a high presence of artificially stabilised sectors where the inward migration of the shoreline associated with it is hindered, together with an intensification of the retreat rates in natural sections. Similarly, there is a clear differentiation between a relatively dynamic Atlantic façade with a higher percentage of erosive sectors and a Mediterranean façade highly conditioned by anthropic presence, with a lower percentage but a higher intensity in their values.
Tendencias de cambio de usos y coberturas de suelo en la cuenca hidrográfica media-alta del río Mira en Ecuador
Authors: Arias-Muñoz Paúl , Saz Miguel Ángel , Escolano Severino
Published: January 2024

El empleo de sensores remotos junto a la información de los factores sociales propios de cada población permite el monitoreo del uso de los recursos naturales. El objetivo del presente estudio fue determinar el cambio y proyección a futuro de los usos y coberturas de suelo, y a la vez comprender, desde la perspectiva de los principales actores, los factores propulsores y subyacentes que impulsan estos cambios en la cuenca hidrográfica media-alta del río Mira. Para ello, se utilizaron imágenes multiespectrales, Landsat y Sentinel del año 1996, 2007 y 2018, a las cuales se las realizó un pretratamiento y tratamiento. Se efectuó una proyección de los cambios de coberturas y usos del suelo del 2018-2030 mediante el software TerrSet. Después, utilizando el método Delphi se identificaron los factores propulsores y subyacentes. Los resultados encontrados muestran que bosques y pastos presentaron una disminución sostenida, mientras que las áreas de cultivo y zonas urbanas aumentaron dentro de los periodos 1996-2018 y 2018-2030. Estos cambios se relacionan con el crecimiento urbano, agrícola, ganadero, minero y de la industria forestal; impulsados generalmente por el aumento poblacional, demanda de mercado, cambios de patrones de consumo, expansión de las carreteras e inexistencia de políticas ambientales.
Análisis de las conductas de movilidad de los estudiantes de Geografía e Historia de la Universidad Pablo de Olavide
Authors: Hassold Andreas Christian , Gavira Narváez Antonio
Published: January 2024

La movilidad juega un papel esencial en la vida cotidiana de la población, especialmente en el caso de los estudiantes que diariamente se ven obligados a desplazarse hasta sus centros de estudio. Se plantea el presente trabajo con el fin de conocer las conductas de movilidad de los estudiantes del Grado en Geografía e Historia y sus dobles grados de la Universidad Pablo de Olavide, así como el impacto que han tenido las medidas de bonificación de los medios de transporte. La localización de este campus universitario dentro de la aglomeración urbana de Sevilla, aunque fuera de los núcleos de población favorece que sea interesante esta primera aproximación a su estudio. Los resultados obtenidos se han basado en la encuesta realizada a este conjunto de estudiantes, lo que ha permitido conocer que un 79 % se desplaza hasta la universidad en transporte público, mientras que los principales usuarios del vehículo privado son los residentes en municipios del área metropolitana con malas conexiones de transporte público. Por ello, entre otras medidas, se propone mejorar las conexiones de transporte público y crear rutas de autobús en las zonas que no tienen servicio de metro dentro de la ciudad de Sevilla.
Incorporación de factores socioeconómicos al análisis de vulnerabilidad del riesgo por inundación en vías usando un modelo geoespacial
Authors: Parra Saad Alejandro , Sanabria Buitrago Mayerling , Sanabria Ricardo , Piñeros Dueñas Karol Natalia
Published: January 2024

Colombia por sus características geofísicas y ubicación en la zona tropical es propensa a fenómenos de inundación, que sumados a la vulnerabilidad de la red vial y la presencia permanente de población contiguamente a la vía, acrecientan la fragilidad social y económica en los corredores viales. Esta situación se evidencia cuando se presentan colapsos de transitabilidad por inundación, pues el país moviliza la mayoría de sus mercancías por tierra. El conocimiento y sistematización de las condiciones, sociales y económicas en el trazado vial nacional, y la incorporación de estos datos a un modelo espacial replicable, podría ser una alternativa para tomar decisiones orientadas a prevenir el riesgo. En este artículo se presenta el diseño conceptual y metodológico de una propuesta para involucrar los factores socio económicos requeridos en una evaluación del riesgo por inundación en vías utilizando herramientas de análisis espacial en el tramo piloto Ruta 6008 Chiquinquirá-Sáchica (36 km). Se cuantifica un índice global de aspectos socioeconómicos que se relaciona con la vulnerabilidad en tres niveles: local, zonal y regional. Como resultado principal se encuentra que el corredor vial presenta un nivel de vulnerabilidad media-alta, debido a los aspectos de exposición y fragilidad en las condiciones de vivienda y medios de vida.
Biosynthesis, Characterization and Antimicrobial Efficacy of Zinc Oxide Nanoparticles via Plectranthus amboinicus Leaf Extract
Authors: Porkalai V. , Lavanya N. , Nithya R. , Sagayaraj R.
Published: January 2024

This study investigates the environmental friendly synthesis of zinc oxide nanoparticles using Plectranthus amboinicus leaf extract. The X-ray diffraction (XRD) analysis confirms the presence of well-crystalline ZnO nanoparticles with a crystallite size of 42 nm. Scanning electron microscopy (SEM) reveals the size, shape and distribution of nanoparticles within the extract, indicating their impact on Plectranthus amboinicus growth. Energy dispersive X-ray (EDX) analysis confirmed the high nanoparticle purity, while FTIR spectral analysis identifies the organic compounds involved in the synthesis. UV-visible absorption spectroscopy shows a reduced bandgap energy in the green-synthesized ZnO nanoparticles. Dynamic light scattering (DLS) analysis indicates a mean particle size of 11 nm with a significant stability. These nanoparticles exhibit exceptional antimicrobial activity, especially against Gram-negative bacteria. This eco-friendly synthesis method offers cost-effectiveness, safety and sustainability, promising diverse applications in the antimicrobial therapies, food preservation and water treatment, addressing various industrial challenges.
An Efficient Adsorption of Safranin O Dye on Ascorbic Acid Coated Nanoparticles: Thermodynamics, Kinetics and Isotherm Studies
Authors: Rani Keerti , Singh Jaiveer , Jangra Arti , Kumar Jai , Kumar Ramesh
Published: January 2024

In present work, the chemical co-precipitation method was used to prepare the ascorbic acid coated magnetite nanoparticles (AA-MNPs) which were then applied for the elimination of hazardous dye safranin O from the contaminated water. With the help of XRD peaks and Debye-Scherrer equation, the average size of the ascorbic acid coated nanoparticles was found to be 18 nm. These surface coated nanoparticles were further characterized using FTIR, TGA, FESEM and VSM methods. Thus, formed surface functionalized  magnetite nanoparticles (MNPs) were used for the removal of safranin O dye from the contaminated water, using batch adsorption  technique by considering dosage of AA-MNPs, dye concentration, pH of solution and temperature. It was found that synthesized AA- MNPs showed the highest dye removal efficacy (more than 97%) when the dye concentration was taken 50 ppm. Different  thermodynamic parameters were measured, including ∆Gº, ∆Hº and ∆Sº. Adsorption of safranin O dye on the surface of AA-MNPs was  found to be exothermic and spontaneous, according to thermodynamic parameters. The Freundlich model matched the experimental  equilibrium data better, implying a heterogeneous multilayer adsorption on nanoparticles surface, according to the isotherm analysis.  Moreover, the investigation of kinetic data suggested a pseudo 2nd order rate for the safranin O dye adsorption process. In addition, a  comparative investigation has been made for the efficacy of the removal of safranin O dye by ascorbic acid coated magnetic  nanoparticles with the adsorbents that have previously been reported.
Synthesis of Template-Free CNTS Nanostructures by Hydrothermal Method: Investigating Structural, Photocatalytic, Antibacterial and Electrochemical Properties
Authors: Manjula S. , Mohanraj K. , Sivakumar G.
Published: January 2024

In this study, nanoparticles of quaternary chalcogenide Cu2NiSnS4 (CNTS) were prepared by a hydrothermal method to evaluate their electrochemical, photocatalytic and antibacterial performances. The samples were synthesized using aqueous solution of thiourea as a sulfur source without any surfactant assistance. The XRD pattern of the synthesized samples exhibited pure phases of Cu2NiSnS4 nanoparticles corresponding to the cubic structure along the (111) plane. The average crystallite sizes decreased with increasing  thiourea concentrations. FESEM analysis revealed that the optimized sample exhibited nanosheets with bundle-like structures. The  oxidation states of quaternary chalcogenide nanoparticles, such as Cu2+, Ni2+ and Sn4+ were confirmed by XPS technique. The  bandgap value of the synthesized sample was estimated at 1.35 eV. The cyclic voltammetry profiles exhibited pseudocapacitive  characteristics, whereas the charge-discharge investigation of the CNTS-10 electrode yielded the highest capacitance value of 374 Fg-1  under a low scan rate. The degradation efficiency of two different dyes e.g. methylene blue (MB) and crystal violet (CV) was  investigated by photocatalytic measurements and the optimized sample CNTS-10 exhibited the highest efficiencies of 88% and 82%  respectively. The antibacterial activity results clearly showed that a maximum inhibition rate (22 mm for 100 µg/mL) was found for  Vibrio parahaemolyticus against other pathogenic bacteria.
Synthesis and Characterization of Novel Schiff Base Polymers as Adsorbents for the Removal of Mercuric Ion from Aqueous Solution
Authors: Santhi R. , Rajeswari B.
Published: January 2024

The primary objective of this study is to synthesize polymeric adsorbents and assess the analytical effectiveness of novel organic composites using the batch mode of adsorption. Hence, the organic polymers were prepared by doping the Schiff bases on polyaniline chloride by chemical oxidation method. The prepared polymeric composites were characterized using UV-visible, FT-IR and 1H NMR  spectral techniques. An attempt was made to investigate adsorption capacity of synthesized polymers for the removal of mercuric ion  by varying the various factors such as initial concentration of adsorbates, temperature, contact time, pH, concentration of adsorbents.  Sorption isotherms were constructed using Langmuir, Freundlich, Dubinin Radush Kevich, Temkin and Redlich Peterson models. The  SEM micrograph and PXRD spectra were also recorded to confirm the metal ion adsorption on the surface of investigated composites.
Synthesis of a Series of Quinoline-Based New Chiral Reagent and its Application in Separation of Racemic Mexiletine followed by Liquid Chromatography and Confirmation of Results Using Molecular Modelling; A Complete Study
Authors: Solanki M. , Sehlangia S. , Talismanov V.S. , Damayanthi A. , Patel M. S. , Shrivastava S. , Alwera S.
Published: January 2024

In present work, L-valine-based new chiral derivatives were prepared by introducing hydrophobic groups. The prepared derivatives were then used to prepare quinoline-based chiral reagents under mild amidation reaction and esterification reaction. Spectroscopic  techniques, such as HRMS, FT-IR, 1H NMR and CHNS analysis, were used to characterize the synthesized chiral reagents. The  synthesized series of reagents was then used to derivatize diastereomers of racemic mexiletine and these diastereomers were  separated using the RP-HPLC (a derivatization approach of enantioseparation). The mobile phase for the analysis consisted of  acetonitrile and buffer solution. The impact of modifying mobile phase pH and concentrations was optimized to separate  diastereomers. The lowest energy-minimize optimized diastereomer structures, as well as the design of separation processes and  elution orders, were also developed through the use of density functional theory (DFT) calculations. Following ICH guidelines, the limits of detection (0.161 ng/mL) and quantification (0.483 ng/mL) were determined, together with the retention-factor (k), selectivity-factor  (α), resolution-factor (RS) and technique validation.
A TOPSIS-Based Multicriteria Approach for Reservoir Assessment
Authors: Aires Renan Felinto de Farias , Salgado Camila Cristina Rodrigues
Published: January 2024

Abstract Water management in the Brazilian semi-arid region has been, for decades, a challenge for institutions and decision-makers due to its intrinsic characteristics. The density of human occupation makes the region very vulnerable to drought events and problems related to the quality and need for water use are central issues. For this reason, this study presents an approach to assess the situation of water reservoirs in the semiarid based on the Water Quality Index (WQI) and Multi-Criteria Decision Making (MCDM). The WQI was used to calculate water quality and later applied as a criterion for the MCDM model proposed. The model also considers the need and availability criteria to assess the reservoirs of the two largest drainage basins in Rio Grande do Norte state, Brazil. The MCDM method used was R-TOPSIS since it is more flexible and robust for future analyses in other situations. The results showed the condition of the reservoirs, in order to support decision-makers in the operation of these facilities and enable multiple use of the waters. The combined approach proposed may provide important contributions in the analysis of water reservoirs in order to supply the semiarid region, where water issue is critical.
Nexus between Capital Expenditure and Economic Growth in Indonesia in the Covid-19 Pandemic
Authors: Fadhilah Hanifah Zulfa , Chandra Herlina Aria , Wahyuningsih Merliana , Badrudin Rudy
Published: January 2024

This study aimed to determine the relationship between capital expenditure and the Covid-19 pandemic on economic growth in Indonesia. This study used a sample of all provinces in Indonesia, consisting of 34 provinces in 2019-2021. It analysed the data by using an Analysist Covariate or ANCOVA. The results showed that capital expenditure had no effect on economic growth while the Covid-19 pandemic had a positive effect on economic growth. The Covid-19 pandemic in this study was initially formulated that the Covid-19 pandemic had a negative impact, but the results of the study said otherwise. The positive influence of the Covid-19 pandemic is due to the digitalization of the economy. Capital expenditure issued by the government during the pandemic has not been able to increase economic growth. Therefore, the government must consider the allocation of capital expenditures in the APBD and supervise the implementation of the APBD, especially during the Covid-19 pandemic.
Infrastructure and Ecosystem Analysis of Creative Craft Industry
Authors: Wulandari Deasy , Sukarno Hari , Fauziyyah Salma , Khusna Khanifatul , Muhsyi Abdul
Published: January 2024

The creative industry contributes greatly to the Indonesian economy but the export contribution of Indonesia's creative industry is still weak. Therefore, it is necessary to study the analysis of the ecosystem and infrastructure of MSMEs. The purpose of this study is to analyze the competitive position of the craft cluster creative industry. This type of research is descriptive quantitative research with the simple consisting of the craft cluster SMEs. The sample was taken using multistage sampling method, which consisted of purposive sampling and convenience sampling. Analytical tool used is the BCG Matrix. Competitive position of creative industries can be identified from several aspects, including infrastructure and ecosystem aspects. Competitive position of the infrastructure aspect is known through market share on the horizontal axis of the BCG Matrix and competitive position of the ecosystem aspect is known through market growth on the vertical axis of the BCG Matrix. Based on analysis of the BCG Matrix, the craft cluster is in dog quadrant. Dog quadrant has low infrastructure and low ecosystem conditions. The right strategy to apply to craft clusters to get their products out of the dog quadrant is a defense strategy that includes downsizing, diversification or liquidation.
Percaya tidak percaya: Benarkah jika kepercayaan dapat dibangun setelah mengkonsumsi suatu konten? (Studi fenomenologi konten edukasi pada ternak uang)
Authors: Parasari Nyoman Sri Manik , Maheswari A.A. Istri Agung , Ariwangsa I Gusti Ngurah Oka , Koeslila Ni Putu Ayu Mirah Indrayani Setyawati
Published: January 2024

Penelitian ini membahas pemasaran digital yang berfokus pada pemasaran konten edukasi finansial pada aplikasi Ternak Uang, bagaimana konten edukasi finansial dapat membangun kepercayaan merek, dari kepercayaan tersebut akan memperkuat hubungan konsumen dengan merek, mendorong untuk mengambil keputusan pembelian. Penelitian ini menggunakan metode fenomenologi untuk mengetahui fenomena yang terjadi pada konten edukasi Ternak Uang. Tahap pengumpulan data menggunakan wawancara mendalam. Dalam penelitian ini ditemukan bahwa faktor kepercayaan merek yang dibangun melalui konten edukasi dapat mempengaruhi keputusan pembelian, tetapi alasan keuangan menjadi faktor penghalang keputusan tersebut. Hasil penelitian ini adalah konten edukasi mengedukasi konsumen dalam menawarkan produk dan memenuhi sumber informasi yang dikemas dalam bentuk konten akan lebih dipercaya, jika pemberi informasi tersebut merupakan orang yang ahli dalam bidang investasi dan keuangan. Melalui penelitian ini diharapkan dapat memberikan informasi melalui konten edukasi yang efektif dalam mempengaruhi keputusan konsumen agar percaya dengan merek. Implikasi penelitian ini adalah kredibilitas dan otoritas terhadap konten edukasi Ternak Uang, pengambilan keputusan konsumen, pembentukan sikap dan kepercayaan terhadap potensi bisnis Ternak Uang serta berbagi minat dan tujuan yang sama.
Pengaruh kualitas, nilai dan kepercayaan terhadap loyalitas merek pada jasa kurir domestik
Authors: Alimbel Figo , Sutarso Yudi
Published: January 2024

Menutup keterbatasan studi dalam mengkonfirmasi pengaruh antaseden loyalitas khsususnya pada jasa kurir domestik pada Jas Pos Indonesia menjadi kontribusi yang diharapkan dari studi ini. Sehingga, studi ini bertujuan menguji pengaruh persepsi nilai, kualitas, dan kepercayaan terhadap loyalitas merek pada pengguna jasa kurir domestik pada Jas Pos Indonesia. Untuk hal tersbeut studi ini menggunakan desain kuantitatif dengan melibatkan 142 sampel yang dipilih dengan teknik purposive sampling, di mana data dikumpulkan melalui kuisioner dan disebarkan kepada pengguna jasa paket di Kabupaten Siak. Tanggapan responden dianalisis dengan analisis deskriptif dan analisis statistik menggunakan SEM WarpPLS. Hasil analisis menunjukkan bahwa persepsi kualitas dan nilai berpengaruh positif terhadap kepercayaan dan loyalitas merek, namun kepercayaan merek tidak terkonfirmasi berpengaruh positif terhadap loyalitas merek. Implikasi studi ini adalah perlunya perusahaan mengembangkan strategi yang digunakan, terutama dalam meningkatkan kinerja dalam menghadapi kompetensi di industri jasa kurir saat ini dengan cara membangun persepsi kualitas dan persepsi nilai yang baik sehingga dapat meningkatkan loyalitas pelanggan.
Green marketing & environmental concern: Minat beli generasi z terhadap personal care products
Authors: Shevia Shevia , Christiarini Renny , Qadri Rizni Aulia
Published: January 2024

Beauty and Personal Care Industry merupakan salah satu sektor industri yang ber-kembang pesat dan memberikan kontribusi signifikan terhadap pertumbuhan ekonomi Indonesia. Namun, pertumbuhan sektor ini juga membawa tantangan baru, khususnya terkait timbunan sampah plastik dan dampaknya terhadap lingkungan. Penelitian ini bertujuan untuk menguji pengaruh green marketing dan environmental concern terhadap purchase intention generasi Z terhadap green personal care product. Peneliti menggunakan partial least squares (PLS) untuk menganalisis data yang berasal dari kuesioner didistribusikan secara purposive sampling kepada  generasi Z di Indonesia yang berusia 17-26 tahun dan berwawasan green personal care product. Diperoleh 408 data, kemudian Model penelitian dikembangkan melalui ABC Theory. Temuan penelitian menunjukkan bahwa green marketing dan environmental concern memiliki pengaruh positif dan signifikan terhadap minat beli generasi z pada green personal care product. Namun, penelitian ini tidak menemukan pengaruh positif antara green product dan purchase intention yang dimediasi oleh environmental attitude. Penelitian ini diharapkan dapat membantu pembaca untuk meningkatkan pemahaman dalam bidang manajemen pemasaran, terutama dalam konteks green marketing. Selain itu, diharapkan pula dapat memberikan panduan praktis bagi perusahaan dalam mengembangkan strategi dan menciptakan keunggulan kompetitif dalam pasar yang semakin peduli terhadap isu lingkungan.
The C*-algebra of the Boidol group
Authors: Lin Ying-Fen , Ludwig Jean
Published: January 2024

The Boidol group is the smallest non-

∗

{\ast}

-regular exponential Lie group.
It is of dimension 4 and its Lie algebra is an extension of the Heisenberg Lie
algebra by the reals with the roots 1 and -1. We describe the C*-algebra of
the Boidol group as an algebra of operator fields defined over the spectrum of
the group. It is the only connected solvable Lie group of dimension less than or
equal to 4 whose group C*-algebra had not yet been determined.
Cellular covers of divisible uniserial modules over valuation domains
Authors: Fuchs László , Goldsmith Brendan , Salce Luigi , Strüngmann Lutz
Published: January 2024

Cellular covers which originate in homotopy theory are considered here for a very special class: divisible uniserial modules over valuation domains. This is a continuation of the study of cellular covers of divisible objects, but in order to obtain more substantial results, we are restricting our attention further to specific covers or to specific kernels. In particular, for h-divisible uniserial modules, we deal first with covers limited to divisible torsion-free modules (Section 3), and continue with the restriction to torsion standard uniserials (Sections 4–5). For divisible non-standard uniserial modules, only those cellular covers are investigated whose kernels are also divisible non-standard uniserials (Section 6). The results are specific enough to enable us to describe more accurately how to find all cellular covers obeying the chosen restrictions.
Examining the effects of two cognitive styles (field dependence vs. field independence) on learners’ mobile-assisted vocabulary acquisition
Authors: Mehdipour-Kolour Danial , Ali Mohamad Bilal
Published: January 2024

Learners with different cognitive styles (here, field dependence vs. field independence) may learn second language vocabulary differently in different vocabulary learning settings. Although cognitive style has been widely studied in second language research, little is known about how field dependence/independence affects learners’ vocabulary acquisition in a mobile-assisted learning setting. One approach to solve this problem is to investigate the possible effect(s) of field dependence/independence on learners’ short-term vocabulary recall in a mobile-assisted vocabulary acquisition setting (here, Memrise). To investigate such effect(s), this study adopted a pretest-posttest design involving 147 intermediate-level learners of English as a second language. Using the Group Embedded Figures Test, participants were divided into two groups: field dependent and field independent learners. For 4 weeks, both groups practiced and reinforced a set of English vocabulary, selected from the Vocabulary Level Test, through Memrise flashcards. Our findings reveal a post-intervention improvement among both field-dependent and field-independent learners, but with field-independent learners slightly outperforming their counterparts in the short-term recall of the vocabulary. Implications and recommendations for future research are discussed.
AI Literacy and Zambian Librarians: A Study of Perceptions and Applications
Authors: Alam Abid Fakhre , Subaveerapandiyan A. , Mvula Dalitso , Tiwary Neelam
Published: January 2024

This study delves into artificial intelligence (AI) literacy within Zambian academic libraries, focusing on librarians’ perceptions and applications of AI. The research aims to gauge the AI literacy level among Library and Information Science Professionals in Zambia, identify their awareness and knowledge of AI applications in libraries, and explore their perceptions regarding the advantages and challenges of implementing AI technologies in library services. Data from 82 diverse participants were gathered using purposive and convenience sampling methods. The findings indicate a solid understanding of AI fundamentals among Zambian librarians and positive attitudes towards AI’s potential benefits in library services. However, challenges such as the need for enhanced AI expertise, resistance to change, and budgetary constraints are acknowledged.
Stochastic controls of fractional Brownian motion
Authors: Hamed Ikram , Chala Adel
Published: January 2024

We consider a stochastic control problem for a non-linear forward-backward stochastic differential equation driven by fractional Brownian motion, with Hurst parameter

H
∈

(
0
,
1
)

{H\in(0,1)}

, in the case where the set of the control domain is convex. We provide an estimation of the solution and establish the necessary and sufficient optimality conditions in the form of the stochastic maximum principle.
We apply the theory to solve a linear quadratic stochastic control problem.