bluuebunny/crossref_metadata_2025_split huggingface dataset:
Medición experimental de la densidad de la nube de cavitación en un Slit Venturi
Authors: Díaz Martínez Alejandro , Rivera López Jesús Eduardo , Arciniega Martínez José Luis , Juárez Navarro Carlos Alfonso , Gutiérrez Paredes Guadalupe Juliana , Orozco Durán Gabriela Esmeralda 
Published: March 2023

En el presente trabajo, se reporta la caracterización experimental de la formación y desarrollo de la nube de cavitación en diferentes temperaturas de líquido 20, 30, 40 y 50 °C. Para ello, se construyó una instalación hidráulica que tiene como elemento principal un tubo Venturi de sección rectangular, con ella, se generaron las condiciones de flujo necesarias para formar la cavitación y medir las propiedades termodinámicas para el cálculo de los números adimensionales de Thoma y Reynolds. El error promedio de sesgo de las mediciones no superó el 1%, por tal razón, se aseguró la buena calidad del cálculo en los números adimensionales de Thoma y Reynolds. Con los números de Thoma “σ” y Re se caracterizaron las diferentes fases de la nube de cavitación, desde incipiente, cuasi, desarrollada y super cavitación en el rango de temperaturas del experimento, encontrando que el tránsito de la cavitación incipiente a desarrollada es más fácil a temperatura ambiente, ya que, el régimen de flujo aumentará solo 15.82% en comparación con las otras temperaturas. El inicio de la nube de cavitación depende de la viscosidad del fluido, en el intervalo de prueba la variación de la viscosidad fue de 55% por lo que el régimen de flujo será afectado por la viscosidad y por consiguiente en el inicio de la nube de gas. Finalmente, la densidad del fluido en el rango de temperatura de la prueba permaneció constante, ya que no vario más de 1%, por lo que no afectó al régimen de flujo.
Impact of Galaxy Mergers on Stellar Population Profiles of Early-type Galaxies
Authors: Yoon Yongmin , Ko Jongwan , Kim Jae-Woo 
Published: March 2023

Abstract
We study the impact of galaxy mergers on stellar population profiles/gradients of early-type galaxies (ETGs) using ETGs at z < 0.055 in the Stripe 82 region of the Sloan Digital Sky Survey and MaNGA integral field unit spectroscopic data. Tidal features around ETGs, which are detected from deep coadded images, are regarded as direct observational evidence for recent mergers. We find that ETGs with tidal features have less negative metallicity gradients and more positive age gradients than ETGs without tidal features at M
star ≳ 1010.6
M
⊙. Moreover, when integrating all the resolved stellar populations, ETGs with tidal features have lower metallicities by ∼0.07 dex and younger ages by ∼1–2 Gyr than ETGs without tidal features. Analyzing star formation histories, we discover that the mass fraction of young stellar populations with age <5 Gyr is higher in the central regions of ETGs with tidal features than in the same regions of the counterparts without tidal features. Compared to normal ETGs, ETGs with tidal features have a slow metal-enrichment history in the early universe, but they have been accelerating the metal enrichment through recently formed stars over the last few billion years. Many of our results can be explained if the effects of recently occurred mergers are different from those in the early universe, which are more likely to be rich in gas.
CEERS Key Paper. II. A First Look at the Resolved Host Properties of AGN at 3 < z < 5 with JWST
Authors: Kocevski Dale D. , Barro Guillermo , McGrath Elizabeth J. , Finkelstein Steven L. , Bagley Micaela B. , Ferguson Henry C. , Jogee Shardha , Yang Guang , Dickinson Mark , Hathi Nimish P. , Backhaus Bren E. , Bell Eric F. , Bisigello Laura , Buat Véronique , Burgarella Denis , Casey Caitlin M. , Cleri Nikko J. , Cooper M. C. , Costantin Luca , Croton Darren , Daddi Emanuele , Fontana Adriano , Fujimoto Seiji , Gardner Jonathan P. , Gawiser Eric , Giavalisco Mauro , Grazian Andrea , Grogin Norman A. , Guo Yuchen , Arrabal Haro Pablo , Hirschmann Michaela , Holwerda Benne W. , Huertas-Company Marc , Hutchison Taylor A. , Iyer Kartheik G. , Jones Brenda , Juneau Stéphanie , Kartaltepe Jeyhan S. , Kewley Lisa J. , Kirkpatrick Allison , Koekemoer Anton M. , Kurczynski Peter , Bail Aurélien Le , Long Arianna S. , Lotz Jennifer M. , Lucas Ray A. , Papovich Casey , Pentericci Laura , Pérez-González Pablo G. , Pirzkal Nor , Rafelski Marc , Ravindranath Swara , Somerville Rachel S. , Straughn Amber N. , Tacchella Sandro , Trump Jonathan R. , Wilkins Stephen M. , Wuyts Stijn , Yung L. Y. Aaron , Zavala Jorge A. 
Published: March 2023

Abstract
We report on the host properties of five X-ray-luminous active galactic nuclei (AGN) identified at 3 < z < 5 in the first epoch of imaging from the Cosmic Evolution Early Release Science Survey. Each galaxy has been imaged with the JWST Near-Infrared Camera, which provides rest-frame optical morphologies at these redshifts. We also derive stellar masses and star formation rates for each host by fitting its spectral energy distribution using a combination of galaxy and AGN templates. We find that three of the AGN hosts have spheroidal morphologies, one is a bulge-dominated disk, and one is dominated by pointlike emission. None are found to show strong morphological disturbances that might indicate a recent interaction or merger event. When compared to a sample of mass-matched inactive galaxies, we find that the AGN hosts have morphologies that are less disturbed and more bulge-dominated. Notably, all four of the resolved hosts have rest-frame optical colors consistent with a quenched or poststarburst stellar population. The presence of AGN in passively evolving galaxies at z > 3 is significant because a rapid feedback mechanism is required in most semianalytic models and cosmological simulations to explain the growing population of massive quiescent galaxies observed at these redshifts. Our findings show that AGN can continue to inject energy into these systems after their star formation is curtailed, potentially heating their halos and preventing renewed star formation. Additional observations will be needed to determine what role this feedback may play in helping to quench these systems and/or maintain their quiescent state.
General Toeplitz kernels and -invariance
Authors: Câmara M. Cristina , Kliś-Garlicka Kamila , Ptak Marek 
Published: March 2023

AbstractMotivated by the near invariance of model spaces for the backward shift, we introduce a general notion of
$(X,Y)$
-invariant operators. The relations between this class of operators and the near invariance properties of their kernels are studied. Those lead to orthogonal decompositions for the kernels, which generalize well-known orthogonal decompositions of model spaces. Necessary and sufficient conditions for those kernels to be nearly X-invariant are established. This general approach can be applied to a wide class of operators defined as compressions of multiplication operators, in particular to Toeplitz operators and truncated Toeplitz operators, to study the invariance properties of their kernels (general Toeplitz kernels).
Assessing the Extent of Post-traumatic-stress Disorder from Kidnapping Experience of 5 Victims and their Significant others in Kaduna Metropolis, Kaduna State, Nigeria
Authors: Chinonye Aloku O 
Published: March 2023

Purpose: Kidnapping has become a huge problem in parts of Nigeria such that residents of Kaduna metropolis who have become victims with their significant others are left to suffer varying levels of mental trauma. The study assessed kidnapping experiences and the Post-Traumatic experiences on the victims and their significant others in Kaduna Metropolis, Kaduna, Nigeria.
Methodology: A survey research design with snowball sampling method was utilized. A total of 10 male and female residents were participants in this study. Post-traumatic distress scale was used and interviews were conducted to collect quantitative and qualitative data respectively. The quantitative data was analyzed testing the hypothesis by way of independent T-test. The Qualitative data was analyzed using thematic narration .The hypothesis tested for the association between kidnap experience and PTSD of victims and their significant others in Kaduna metropolis, Kaduna State.
Findings: The study found that victims and their significant others suffered varying symptoms of PTSD stemming from the kidnap experiences in Kaduna metropolis, having PTSD scores ranging from (1.5– 3.7) on the PTSD scale as a result of kidnap experiences. Since all the p-values are greater than 5% level of significance, we therefore accept the hypothesis that there is no significant difference in the PTSD of kidnapped victims and significant others in Kaduna metropolis by way of the PTSD scale. Qualitative analysis revealed that the victims went through much traumatic experiences which had left them with trust issues and phobias, having changed their perspective on life as they once knew it.
Recommendation: The victims of kidnap and their significant others are in dire need of counseling therapy, psychological and or psychiatric intervention to limit disability as rehabilitation is vital. There is much needed social and financial support for victims, economic recovery schemes by federal and state governments are needed to minimize security issues.
Motivation, Satisfaction and Repurchase Intentions of Chinese Restaurant Customers: Evidence from the Accra Metropolis, Ghana
Authors: Bedua-Taylor Nana Esi , Amissah Eunice Fay , Mensah Nana Adiyiwa Obeng 
Published: March 2023

Purpose: Despite the fact that the customer base for Chinese restaurants in the Accra Metropolis is ever expanding, there is little evidence on the motivational and satisfaction elements that ramp up the customers’ repurchase desires; hence, denying these restaurants and others the opportunity to capitalise on these elements to maximise returns. This study, thus, using an explanatory research design, assessed the effect of motivation and satisfaction on repurchase intentions of customers of Chinese restaurants in the Accra Metropolis of Ghana.
Methodology: Employing a multistage sampling technique, a sample of 218 customers were selected and included in the study. A structured closed-ended questionnaire was used to collect data for the analysis. Data were analysed using means, standard deviations, and regression techniques.
Findings: The results showed that health, adventure, social interaction and family togetherness, culture and modern atmosphere drive Chinese restaurant customers to make repurchase decisions. It was also revealed that the Chinese restaurant customers find satisfaction in food quality, service quality, atmospherics and authenticity of services at the Chinese restaurants. Additionally, customer motivation and satisfaction were found to have significantly positive effects on repurchase intentions.
Unique contribution to theory and practice: It was concluded that increased customer motivation and satisfaction is necessary for an expanded customer base for Chinese restaurants in the Accra Metropolis. Therefore, operators of Chinese restaurants should channel efforts into improving drivers for motivation and satisfaction.
A juvenilização e a maturidade na Educação de Jovens e Adultos: um debate necessário no atual contexto
Authors: Borba Sara Ingrid 
Published: March 2023

RESUMO: O presente artigo tem como objetivo evidenciar nas discussões sobre a Educação de Jovens e Adultos um fenômeno relacionado a intergeracionalidade dos sujeitos que a constituem, referente presença cada vez mais crescente de jovens e por outro lado a busca de pessoas idosas nos espaços escolares. A este processo denominamos aqui de juvenilização e maturidade da Educação de Jovens e Adultos como forma de delimitar a discussão e facilitar a compreensão do fenômeno. Para esta temática buscamos os estudos freirianos como resultantes de experiências concretas que fundamentaram as lutas por uma educação pública para todos e todas, enquanto direito inalienável, garantidos na Constituição Federal de 1988; na LDB 9394/96 e nas demais políticas públicas conquistadas ao longo das lutas dos movimentos populares. Haddad (2011); Arroyo (2008) entre outros. A metodologia da pesquisa e qualitativa e refere-se a estudo bibliográfico, visto o caráter inicial da pesquisa a partir do levantamento de material teórico. Assim defende-se no texto que a pessoa idosa passa a garantir formalmente o seu direito a frequentar a escola em qualquer tempo.
Palavras-chave: Direitos. Políticas públicas. Pessoa idosa.

ABSTRACT: This article aims to highlight in the discussions about Youth and Adult Education a phenomenon related to the intergenerationality of the subjects who constitute it, referring to the increasing presence of young people and on the other hand the search for elderly people in school spaces. To this process we call here the juvenilization and maturity of Youth and Adult Education as a way to delimit the discussion and facilitate the understanding of the phenomenon. For this theme, we seek frerian studies as the result of concrete experiences that underpinted the struggles for public education for all and all, as an inalienable right, guaranteed in the Federal Constitution of 1988; in LDB 9394/96 and in other public policies conquered throughout the struggles of popular movements. Haddad (2011); Arroyo (2008) among others. The research methodology refers to a bibliographic study, given the initial nature of the research from the survey of theoretical material. Thus, it is advocated in the text that the old person begins to formally guarantee his/her right to attend school at any time.
Keywords: Rights. Public policy. Old person.
Islamicate Textiles
Authors: Shirazi Faegheh 
Published: March 2023

Textiles and clothing are interwoven with Islamic culture. In Islamicate Textiles, readers are taken on a journey from Central Asia to Tanzania to uncover the central roles that textiles play within Muslim-majority communities.
This thematically arranged book sheds light on the traditions, rituals and religious practices of these regions, and the ways in which each one incorporates materials and clothing. Drawing on examples including Iranian lion carpets and Arabic keffiyeh, Faegheh Shirazi frames these textiles and totemic items as important cultural signifiers that, together, form a dynamic and fascinating material culture. Like a developing language, this culture expands, bends and develops to suit the needs of new generations and groups across the world.
The political significance of Islamicate textiles is also explored: Faegheh Shirazi’s writing reveals the fraught relationship between the East – with its sought-after materials and much-valued textiles – and the European countries that purchased and repurposed these goods, and lays bare the historical and contemporary connections between textiles, colonialism, immigration and economics. Dr Shirazi also discusses gender and how textiles and clothing are intimately linked with sexuality and gender identity.
A History of Hungary
Authors: Kontier László 
Published: March 2023

A History of Hungary: Millennium in Central Europe provides a comprehensive yet approachable survey of Hungarian history from the prehistoric age to the present day. Politics and culture, economic, social and intellectual developments, and the wider European context are integrated in a single narrative.
László Kontler adeptly steers the reader through ancient times, the great migration of peoples, and the creation and troubles of a Christian monarchy that arose in the region wedged between the Baltic and the Balkans, and the Germanic and Russian lands. He then explores factors such as socio-economic backwardness and foreign rule which put Hungary at a disadvantage in coping with the challenges of modernity – a process marked by revolutions, wars of independence, historic compromises and territorial losses. The book includes a detailed discussion of the ‘socialist’ period, while a brief Epilogue assesses the achievements and the difficulties of the present process of transition to democracy.
Artificial Intelligence
Authors: Callan Rob 
Published: March 2023

This project is a modern introduction to AI suitable for both students and those wishing to gain a practical understanding of AI for use in their work. It describes the background history to AI, clarifies what the goals of AI are, and assesses current technology.
There has been significant growth in real-world applications in recent years, e.g. detection of credit card fraud, building robots for industrial tasks and entertainment, securing networks from hackers, making characters in computer games behave more human like. This book introduces the techniques used in these real-world applications.
All chapters include a range of exercises and suggested project work. Website support and an on-line solutions manual will also be available.
Listening Devices
Authors: Papenburg Jens Gerrit 
Published: March 2023

From 1940 to 1990, new machines and devices radically changed listening to music. Small and large single records, new kinds of jukeboxes and loudspeaker systems not only made it possible to playback music in a different way, they also evidence a fundamental transformation of music and listening itself. Taking the media and machines through which listening took place during this period, Listening Devices develops a new history of listening.Although these devices were (and often still are) easily accessible, up to now we have no concept of them. To address this gap, this volume proposes the term “listening device.” In conjunction with this concept, the book develops an original and fruitful method for exploring listening as a historical subject that has been increasingly organized in relation to technology.
Case studies of four listening devices are the points of departure for the analysis, which leads the reader down unfamiliar paths, traversing the popular sound worlds of 1950s rock ‘n’ roll culture and the disco and club culture of the 1970s and 1980s. Despite all the characteristics specific to the different listening devices, they can nevertheless be compared because of the fundamental similarities they share: they model and manage listening, they actively mediate between the listener and the music heard, and it is this mediation that brings both listener and the music listened to into being. Ultimately, however, the intention is that the listening devices themselves should not be heard so that the music they playback can be heard. Thus, they take the history of listening to its very limits and confront it with its “other”—a history of non-listening.
The book proposes "listening device" as a key concept for sound studies, popular music studies, musicology, and media studies. With this conceptual key, a new, productive understanding of past music and sound cultures of the pre-digital era can be unlocked, and, not least, of the listening culture of the digital present.
Wine
Authors: Bernhard Meg 
Published: March 2023

Object Lessons is a series of short, beautifully designed books about the hidden lives of ordinary things.
While wine drunk millennia ago was the humble beverage of the people, today the drink is inextricable with power, sophistication, and often wealth. Bottles sell for half a million dollars. Point systems tell us which wines are considered the best. Wine professionals give us the language to describe what we taste.
Agricultural product and cultural commodity, drink of ritual and drink of addiction, purveyor of pleasure, pain, and memory - wine has never been contained in a single glass. Drawing from science, religion, literature, and memoir, Wine meditates on the power structures bound up with making and drinking this ancient, intoxicating beverage.
Object Lessons is published in partnership with an essay series in The Atlantic.
Effect of Maitland mobilization on lumbar proprioception, pain, and disability in patients with chronic nonspecific low back pain
Authors: Ibrahim Adel M. , Elkeblawy Maher Mohamed , Howeidy Mohamed Sedik , Elkeblawy Mohamed Maher , Grase Mariem O. , Aneis Yasser M. 
Published: March 2023

IntroductionTo investigate the short-term effect of Maitland mobilization on lumbar proprioception, pain intensity, and functional disability in patients with chronic nonspecific low back pain (CNSLBP).MethodsFifty-four subjects aged 18–30 years old with CNSLBP were randomly assigned into two groups. The experimental group received a selected exercise program (stretching, strengthening, and lumbar stabilization exercises) and Maitland posterior-anterior vertebral mobilization three sessions /week, whereas the control group received exercises only. Lumbar repositioning error (LRE), pain intensity, and function disability were measured using an isokinetic dynamometer, visual analog scale (VAS), and the Arabic version of the Oswestry Disability Index (ODI), respectively. Measurements were taken at baseline and four weeks after intervention.ResultsWithin-group analysis showed a significant decrease in LRE, VAS, and ODI after treatment (<i>p</i> < 0.001). Between-group analysis revealed a significant difference between groups post-intervention favoring the Maitland mobilization group (<i>p</i> < 0.001) where the mean differences at 95% confidence interval were (–2.10, –1.36) for LRE, (–34.53, –25.61) for VAS and (–9, –7.07) for ODI.ConclusionsMaitland lumbar mobilization is effective in improving lumbar proprioception, pain intensity, and functional disability in patients with CNSLBP.
Turbulence Kinetic Energy dissipation rate: Assessment of radar models from comparisons between 1.3 GHz WPR and DataHawk UAV measurements
Authors: Luce Hubert , Kantha Lakshmi , Hashiguchi Hiroyuki , Lawrence Dale , Doddi Abhiram , Mixa Tyler , Yabuki Masanori 
Published: March 2023

Abstract. The WPR-LQ-7 is a UHF (1.3575 GHz) wind profiler radar used for routine measurements of the lower troposphere at Shigaraki Middle and Upper (MU) observatory (34.85° N, 136.10° E, Japan) at a vertical resolution of 100 m and a time resolution of 10 min. Following studies carried out with the 46.5 MHz Middle and Upper atmosphere (MU) radar (Luce et al., 2018), we tested models used to estimate turbulence kinetic energy (TKE) dissipation rates ε from the Doppler spectral width in the altitude range ~0.7 to 4.0 km ASL. For this purpose, we compared LQ-7-derived ε by using processed data available on line (http://www.rish.kyoto-u.ac.jp/radar-group/blr/shigaraki/data/) with direct estimates of ε (εU) from DataHawk UAVs. The statistical results reveal the same trends as reported by Luce et al. (2018) with the MU radar, namely: (1) The simple formulation based on dimensional analysis εLout=σ3 / Lout, with Lout ~70 m, provides the best statistical agreement with εU. (2) The model εN predicting a σ2 N law (N is Brunt-Vaïsälä frequency) for stably stratified conditions tends to overestimate for εU < ~5 10−4 m2 s−3 and to underestimate for εU > ~5 10−4 m2 s−3. We also tested a model εS predicting a σ2 S law (S is the vertical shear of horizontal wind) supposed to be valid for low Richardson numbers (Ri = N2 ⁄ S2). From the case study of a turbulent layer produced by a Kelvin-Helmholtz instability, we found that εS and εLout are both very consistent with εU, while εN underestimates εU in the core of the turbulent layer where N is minimum. We also applied the Thorpe method from data collected from a nearly simultaneous radiosonde and tested an alternative interpretation of the Thorpe length in terms of the Corrsin scale defined for weakly stratified turbulence. A statistical analysis showed that εS also provides better statistical agreement with εU and is much less biased than εN. Combining estimates of N and shear from DataHawk and radar data, respectively, a rough estimate of the Richardson number at a vertical resolution of 100 m (Ri100) was obtained. We performed a statistical analysis on the Ri dependence of the models. The main outcome is that εS compares well with εU for low Ri100's (Ri100 < ~1) while εN fails. εLout varies as εS with Ri100 so that εLout remains the best (and simplest) model in the absence of information on Ri. Also, σ appears to vary as Ri100−1/2 when Ri100 > ~0.4 and shows a degree of dependence with S100 otherwise.