bluuebunny/crossref_metadata_2025 huggingface dataset:
“So Important a Part of the Machinery”
Authors: Shaw John M.
Published: January 2023

This chapter explains how, from 1878 onward, the number of mentions of Black fife and drum activity declines year by year in Tennessee newspapers until, in the early years of the twentieth century, it disappears altogether. With the end of Reconstruction, there were fewer Black parades in public places and fewer Black political rallies. What events there were, such as picnics, were more private and less likely to be covered by the press. The rise of segregation also limited white exposure and contact with Black fife and drum music, at least outside of rural areas. Regardless of the lack of public visibility, there is reason to believe that Black fife and drum music continued throughout this period.
“Nerve-Torturers and Wholesale Dispensers of Discord”
Authors: Shaw John M.
Published: January 2023

This chapter looks at Black fife and drum music in Tennessee during segregation. The period of time beginning in the late 1890s and continuing into the early twentieth century represented perhaps the lowest point of race relations in America, an era that some historians refer to as the Nadir. During this time, Black people were summarily stripped of their right to vote and hold office, and state constitutions were rewritten to take away the franchise through poll taxes, literacy tests, and other devices. Laws requiring segregation were enacted in many states, and not always strictly in the South. Under such conditions, it is not surprising that Black fife and drum music began to be encountered less and less in the pages of newspapers. Although there were rallies and political meetings involving fife and drum bands during this era, they were few and far between, mostly involving the Republican Party, or a few third-party efforts, such as the Populists or the American Protective Association. By contrast, the vast majority of fife and drum activity in Tennessee surrounded the Nashville minor league baseball team, the Vols, and the Black fife and drum band hired to promote them.
“Like a Muffled, Rumbling Heartbeat”
Authors: Shaw John M.
Published: January 2023

This chapter explains that by 1942, Black fife and drum music was largely invisible to the larger society. Unmentioned in newspapers and magazines, unrecorded by record labels, the genre had an ephemeral existence in rural Black communities at funerals and picnics. Things might have remained that way forever, but a number of factors came together in postwar America that resulted in the rediscovery of the Black fife and drum tradition. One factor was the activities of folklorists and musicologists such as Alan Lomax. In 1942, he and Louis Jones were commissioned by the Library of Congress to go to the Mississippi Delta and make field recordings. The chapter then looks at the discovery of fife and drum bands such as the Southern Fife and Drum Corps; the Broadnax Brothers; the Fredonia Fife and Drum Band; the United Sons and Daughters of Zion No. 9 Fife and Drum Band; and the Independent Pole Bearers Society No. 9.
Epilogue
Authors: Ashford Evan Howard
Published: January 2023

Abstract and Keywords to be supplied.
Contagious Imagination
Authors: Tolmie Jane
Published: January 2023

This introductory chapter notes that Lynda Barry's works share the theme of passing on creativity. It explains how Barry's work combats neoliberal environments of competition, perfectionism, individualism, and maturity while also breaking down assumptions over good art and bad art. Moreover, her works tend to highlight the pedagogy between classmates and instructors. Barry offers a self-reflective critical and pedagogical praxis that shows a willingness to admit mistakes and reflect on over instruction. The chapter acknowledges Barry as a master of rememorying, which is known to be the deliberate reconstruction of memory to void fixed categories. It considers Barry's pedagogical practice in comparison to radical critiques of the academia and art world.
“Cast Lât Bâ Dlo , Across the Seas”
Authors: Blomgren Olga
Published: January 2023

Weaving together a different way to understand history, nation, and home, Edwidge Danticat encourages archipelagic thinking and decoloniality in the essay collection Create Dangerously: The Immigrant Artist at Work. Danticat’s text considers the way art which relies on personal and public histories brings people into relations beyond borders and national narratives, a community which includes the diasporas. Archipelagic thinking is steeped in continuous movement, and in this text immigrant artists are at home with mobilities and transit. Moreover, physical and transnational human mobilities stimulate and create opportunities for movement of ideas, languages, art, and more. The mobilities of the immigrant artist in this text describe a more fluid relationship with a country, suggesting spatial configurations more closely tied to seas and oceans. Danticat offers waterways that join and transport people as a counter to territorial connections, as well as a space of potential and hope.
Writing Amerindian Ayiti
Authors: Serrato Erika V.
Published: January 2023

Edwidge Danticat weaves Amerindian origin stories into larger Haitian histories and experiences into her work. Anacaona, Golden Flower (2006), as a text meant for young audiences, inculcates the reader into Haiti’s history and foundational myths regarding Hispaniola’s autochthonous populations. The book centers on the eponymous cacica’s coming of age. This analysis brings into relief Danticat’s didactic praxis of writing Amerindian and Afro-creole histories and mythologies in children and young adult literature. Additionally, the author gives a glimpse into the extent to which Danticat’s awareness and mindfulness of Haiti’s complete history necessarily entails Amerindian influences via a brief look into two non-fiction texts: After the Dance (2002) and “We are ugly, but we are here” (1996), which comprise both Arawak and African histories and past celebrations into today’s cultural landscape, compellingly relaying a palimpsestic view of Haiti’s cultural narrative.
The Transformative Potential of LGBTQ+ Children's Picture Books
Authors: Miller Jennifer
Published: January 2023

In The Transformative Potential of LGBTQ+ Children's Picture Books, Jennifer Miller identifies an archive of over 150 English-language children's picture books that explicitly represent LGBTQ+ identities, expressions, and issues. This archive is then analyzed to explore the evolution of LGBTQ+ characters and content from the 1970s to the present. Jennifer Miller identifies dominant tropes that emerge in the field to analyze historical shifts in representational practices, which she suggests parallel larger sociocultural shifts in the visibility of LGBTQ+ identities. Additionally, Miller considers material constraints and possibilities affecting the production, distribution, and consumption of LGBTQ+ children's picture books from the 1970s to the present. This foundational work defines the field of LGBTQ+ children's picture books thoroughly, yet accessibly. In addition to laying the groundwork for further research, The Transformative Potential of LGBTQ+ Children's Picture Books presents a reading lens of critical optimism to analyze the transformative potential of LGBTQ+ children's picture books. Many texts remain attached to heteronormative family forms and raced and classed models of success. However, by considering what these books put into the world, as well as problematic aspects of the world reproduced within them, Miller argues that LGBTQ+ children's picture books are an essential world-making project and seek to usher in a transformed world as well as a significant historical archive that reflects material and representational shifts in dominant and subcultural understandings of gender and sexuality.
What Can Picture Books Do?
Authors: Miller Jennifer
Published: January 2023

Chapter One explores the political work LGBTQ+ picture books can do. Jennifer Miller argues that these texts intervene on a dominant field of cultural visibility that renders queer people and communities invisible. It is suggested that conservative censors understand the transformative potential of the archive, which is demonstrated in censorship discourse. Critical optimism is introduced, an interpretive lens used to analyse the normative attachments and queer potential of LGBTQ+ picture books, and which, it is argued, can play an essential role in the development of queer subjectivity and collectivity.
Beyond the Sissy Boy
Authors: Miller Jennifer
Published: January 2023

Chapter Four explores the short-lived phenomenon of the pink boy, a category parents of effeminate boys tried to normalize from around 2005 to 2010. The chapter uses the framework of critical optimism, an interpretive lens developed to account for attachments to heteronormative family forms and raced and classed models of success as well as the world-making potential of LGBTQ+ picture books, to critique the association of effeminate boyhoods with play in picture books as well as the assumption that masculine girls have easier childhoods than feminine boys.
Arranging Stories
Authors: Fox Heather A.
Published: January 2023

Arranging Stories is a literary and cultural history of short story collections by four southern women writers—Kate Chopin’s Bayou Folk (1894); Ellen Glasgow’s The Shadowy Third (1923); Marjorie Kinnan Rawlings’s When the Whippoorwill (1940); and Katherine Anne Porter’s The Old Order Stories in The Leaning Tower and Other Stories (1944), The Old Order: Stories of the South (1955), and The
Collected Stories of Katherine Anne Porter (1965)—that examines writers’ negotiations of a changing periodical marketplace alongside their publications of collected volumes. In the 1880s-90s, opportunities for southern white women writers increased dramatically, bolstered by readers’ demands for southern stories in northern periodicals. Yet, confined by magazine requirements and social expectations, writers often relied on regional settings and tropes to attract publishers and readers. Publishing a short story collection, unlike other genres, allowed a writer to transcend popular magazine contexts to construct a narrative framework of her own. Drawing upon archived correspondence, manuscripts, periodicals, and collections, the book argues that selecting and ordering magazine stories for short story collections was not arbitrary or dictated by editors, despite a male-dominated publishing industry. Instead, collected volumes conveyed an author’s intention for how to envision a single text in relation to a larger oeuvre by privileging stories, or contextualizing a story by its proximity to other tales, as a form of social commentary. It complicates how we read collective works by situating narrative selection and arrangement as a critically relevant frame for reading and interpreting text.
The Magical (Racial) Contract
Authors: Chica Christina M.
Published: January 2023

Race is foundational to J.K. Rowling's Harry Potter series. The author argues that we can understand the structural context of race in our world and the Wizarding world philosophically by drawing on Charles Mills's The Racial Contract (1997) to illuminate what the author calls the Magical Contract. Mills's philosophical scaffolding is used to demonstrate the logic behind the magical racial order where Wizards—like White people—sit atop a racial hierarchy with other magical beings—like non-White people—positioned below them. Additional scholarship is used to argue that 1) human mixing across blood status (pure, half, Muggle) approximates the historical and sociological process of immigrant assimilation into Whiteness rather than interracial acceptance, and that 2) true miscegenation—reproduction between humans and non-humans—is exceptional and largely repudiated. The author provides a heuristic aided by concepts and examples from legal studies, sociology of migration, political science, and history to understand the Wizarding world.
Racebending Potter
Authors: Coto Kathryn
Published: January 2023

This chapter looks at a specific type of resistant fan production—racebent Harry Potter fanart, which adds diversity to canon by reimagining canonically white characters as people of color—to explore how memory and the cultural process of remembering together via social media affinity spaces are integral to a critical, antiracist project realized through racebending fan artists' work. This chapter places fan voices in dialogue with the academic critique of race in Rowling's novels and film adaptations, and examines several fanart images that are drawings of imaginary photographs or photographic cosplay art and their metatexts—or hashtags and written commentary—to emphasize fanart's sophisticated, multi-layered intertextuality or metafictionality. This paper argues that despite its complexity as text, the visual medium gives racebent Potter fanart currency as an activist tool, connecting to both a larger antiracist activist tradition and a contemporary activist movement.
#NotMyHermione
Authors: Kunze Peter C.
Published: January 2023

The controversy over the casting of Noma Dumezweni proves a generative case study for thinking through social justice and the Wizarding World universe. Unlike other transmedia franchises and their creators, J. K. Rowling has maintained a protective grasp over Harry Potter, going so far as to police fan responses and interpretations she finds to be unsavory or wholly inaccurate. Of course, in the age of convergence, Harry Potter is not merely the property of Rowling or Warner Bros., which produced the films, but also of the fans whose unpaid labor has fueled the franchise's popularity. The question of race in Harry Potter and the Cursed Child, therefore, not only throws into relief the problematic racial and ethnic representations already extant in the Wizard World universe (e.g., the Gringotts), but also encourages us to think about the nuances of authorship in an age of online-supported participatory culture.
Is Dobby a Free Elf?
Authors: Rao Sridevi , Gorecki Preethi
Published: January 2023

This chapter employs a Foucauldian lens to explore the power structures between different species in the wizarding world. Elves, goblins, giants and non-human magic folk move through the wizarding world with different laws and expectations than wizards; these often cause them to be viewed as less than wizards. This chapter explores what it really means to be a “free elf.”
The Eye That Is Language
Authors: Pitavy-Souques Danièle
Published: January 2023

Danièle Pitavy-Souques was the European powerhouse of Eudora Welty studies. These nine essays challenge previous readings of Welty’s fiction, memoir, and photography. “Technique as Myth: The Structure of The Golden Apples” (1979) and “A Blazing Butterfly: The Modernity of Eudora Welty” (1987) and essays written between 2000-2018 also discuss “A Curtain of Green,” “Flowers for Marjorie,” “Old Mr. Marblehall,” “A Still Moment,” “Livvie,” “Circe,” “Kin,” Losing Battles, The Optimist’s Daughter, One Writer’s Beginnings, and One Time, One Place. Welty’s avant-garde narrative techniques move her work beyond the myths and mysteries of the South into a global perspective of humanity. The essays reflect Pitavy-Souques’ European education, her sophisticated understanding of intellectual theories and artistic movements abroad, and her passion for the literary achievement of women of genius to show Welty’s view of the world and her international literary import. Drawing on the visual arts, European theorists, and styles of modernism, post-modernism, surrealism, abstract expressionism, as well as the Baroque and the Gothic, Pitavy-Souques reveals and explains Welty’s brilliance for employing the particular to discover the universal.
Eye That is Language
Authors: Pitavy-Souques Danièle
Published: January 2023

The introduction explains how Canadian writer Rudy Wiebe’s idea of “the eye that is language” focuses the author’s explorations of just how it is that Welty writes fiction that resists easy meaning while delivering powerful truths. An analysis of the narrative techniques in Welty’s story “A Curtain of Green” argues that the artist figure and the artist’s territory are Welty’s primary concerns, most often through the powerful use of Perseus and Medusa.
A Rereading of Eudora Welty’s “Flowers for Marjorie” (2018)
Authors: Pitavy-Souques Danièle
Published: January 2023

This chapter focuses on “Flowers for Marjorie” as a “bold narrative experiment to arouse the public awareness of a major social event”—the Great Depression as Welty observed it in New York City. Familiar with and fascinated by the avant-garde world of New York and the fields of contemporary painting, photography, sculpture, cinema, fiction, poetry, drama, and music, Welty writes “unreality” and a “representation of despair” in “Flowers for Marjorie.” The story is kin to paintings of German expressionism and the blurred frames of dreams of surrealism. Art by Luis Buñel, Salvadore Dali, Max Ernst, and Max Beckman and others are referenced to create the argument.
When Strangers Meet
Authors: Carlson Gretchen L.
Published: January 2023

Chapter 1 invites the reader behind the screen/stage. It juxtaposes the traditional hierarchies, structures, and methods of film production with those of jazz performance, considering the complex negotiations that must take place in jazz-film collaborations. What adjustments/sacrifices are made? Who has the power to make the final decisions? These analyses engage the topics of industry risk, authenticity, and creative labor, while laying the groundwork for the in-depth case studies that follow in the remaining chapters.
“Not a Lot of People Would Go for That”
Authors: Carlson Gretchen L.
Published: January 2023

Chapter 2 investigates the rarest form of film soundtrack – the improvised score. It goes behind-the-scenes of two very different improvised soundtrack productions: Antonio Sanchez’s percussion score for Alejandro González Iñárritu’s Birdman (2014), and Mark Isham’s small-group jazz score for Alan Rudolph’s Afterglow (1997). In both examples, the directors associate improvisation with the authenticity of “real life” (i.e., improvising one’s way through it), therefore explicitly choosing improvising jazz musicians to create soundtracks that sonically evoke the “authentic experience” they attempt to feature in their films. Reading against the concept of filmmaking risk, this chapter illustrates how these scores’ production methods significantly uprooted conventional film-scoring practices, generating rare opportunities for the film composers’ creative agency.
Social TV
Authors: Barker Cory
Published: January 2023

In 2011, Donald Trump changed TV forever. The Comedy Central Roast of Trump was the first major live broadcast to place a hashtag in the corner of the screen to encourage real-time reactions on Twitter. The #trumproast initiative personified the media and tech industries' utopian vision for a multiscreen and communal live TV experience. Social TV: Multiscreen Content and Ephemeral Culture reveals how the US television industry promised—but failed to deliver—a social media revolution in the 2010s to combat the threat of on-demand streaming video. The book examines the rise and fall of Social TV across press coverage, corporate documents, and an array of digital ephemera. It demonstrates that, despite the talk of disruption, the movement merely aimed to exploit social media to reinforce the value of live TV in the modern attention economy. Case studies from broadcast networks to tech start-ups uncover a persistent focus on community in order to monetize consumer behavior in a transitionary period. To trace these unfulfilled promises and flopped ideas, the book draws upon a unique mix of personal Social TV experiences and curated archives of material that were marginalized amid pivots to the next “next big thing.” Yet in placing this now-forgotten material in recent historical context, Social TV shows how the era altered how the industry pursues audiences. Multiscreen campaigns have shifted away from a focus on live TV and toward all-day “content” streams. The legacy of Social TV, then, is the further embedding of media and promotional material onto every screen and into every moment of life.
ANALISIS STATISTIK PITCH PADA AUDIO FORENSIK UNTUK BUKTI DIGITAL
Authors: N Rahmawati
Published: January 2023

Teknologi informasi dan komputer terus berkembang dan telah dimanfaatkan secara luas maupun mendalam. Komputer/digital forensik merupkan aplikasi dari teknologi komputer untuk pembuktian hukum terkait dengan kejahatan berteknologi tinggi hingga bisa mendapatkan bukti bukti digital untuk menjerat para pelaku kejahatan. Wilayah forensik digital cukup luas karena jenis dari konten digital itu sendiri ada banyak, seperti website, email, gambar, audio, video, dan lain-lain. Pada kasus pidana maupun perdata diperlukan barang bukti, salah satunya adalah barang bukti digital/ elektronik. Barang bukti berupa audio recorder yang menghasilkan rekaman suara pembicaraan seseorang dengan orang lain merupakan salah satu barang bukti elektronik. Bukti rekaman suara melalui pemeriksaan audio forensik dapat diketahui identitasnya dengan metode komparasi. Metode ini membandingkan suara didalam rekaman barang bukti dengan suara yang direkam sebagai pembanding. Jika hasilnya identik maka dapat disimpulkan bahwa rekaman barang bukti berasal dari pemilik suara pembanding. Analisa pitch didasarkan pada kalkulasi statistik nilai pitch dari masing-masing suara unknown (Suara Asli) dan known (Suara Asli dengan Voice Changer). Berdasarkan eksperimen yang telah dilakukan pada contoh 20 kata yang diucapkan ditemukan perbedaan nilai analisis statistik pitch dari rekaman suara asli dengan suara yang diberikan voice changer.
Kata kunci: analisis pitch, audio forensik, bukti digital.
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Information technology and computers continue to evolve and have been widely and deeply utilized. Computer / digital forensics are applications from computer technology for legal evidence related to high-tech crimes to being able to obtain digital evidence to ensnare criminals. The area of ​​digital forensics is quite extensive because there are many types of digital content, such as websites, e-mails, images, audio, video, and others. In both criminal and civil cases evidence is required, one of which is digital / electronic evidence. Evidence in the form of an audio recorder which produces a voice recording of a person's conversation with another is one of the electronic evidence. The identity of recorded sound through audio forensic examination can be identified by means of a comparison method. This method compares the sound in the recorded evidence with the sound recorded for comparison. If the results are identical, it can be concluded that the recorded evidence comes from the owner of the comparator vote. Pitch analysis is based on statistical calculation of the pitch value of each of the unknown (Original Voices) and known (Original Voices with Voice Changer) voices. Based on experiments that have been carried out on examples of 20 spoken words, it is found that there is a difference in the value of the pitch statistical analysis of the original voice recording with the voice given by the voice changer.
Keywords: pitch analysis, audio forensics, digital evidence.
MORSELIZED CARTILAGE GRAFT: AN ANALYSIS OF THE AREA AND PERIMETER MEASUREMENTS OF THIS VERSATILE OPTION FOR MODERN RHINOPLASTY
Authors: Souza Thiago Sasso Carmona de , Buttini João Victor , Souza Mariana Sasso Carmona de , Soares Pedro Aguiar , Torres Maria Fernanda Pioli , Soares Caio Marcio Correia
Published: January 2023

Introduction: One of the biggest issues in the field of rhinoplasty is the use of grafts, one of which is the morselized cartilage graft. Few studies to date have sought to demonstrate the changes in size suffered by cartilage after the morselization process. Objective: To compare changes in area and perimeter of septal and auricular cartilages after being submitted to two degrees of morselization. Material and Methods: This was a cross-sectional, comparative, and analytical study. Septum and ear cartilages were separated into two groups: Septal Cartilage Group (SCG) and Auricular Cartilage Group (ACG), and evaluated in their intact, and morselized grades 1 and 2 forms. Area and perimeter measurements were taken and compared. Results: A total of 29 cartilages were analyzed, being 20 septal and 9 auricular. There was a significant increase in the measurements in the SCG according to the degree of morselization. Similar results were also obtained in the ACG, but only with a tendency towards significance. When comparing the two groups, no significant differences were identified. Discussion: Morselized cartilages are important options in rhinoplasty. The increase in the degree of morselization leads to larger grafts, but it is also linked to a decrease in cartilage viability. Despite being structurally distinct, auricular and septal cartilages showed a similar behavior of their measurements after morselization. Such information can help surgeons in choosing their grafts, providing more predictable results. Conclusion: Morselization leads to an increase in the area and perimeter of the cartilage, being greater according to the degree of the process, without significant differences between grafts of septal and auricular origin.
COMPARISON BETWEEN THE SATISFACTION INDEX IN PATIENTS WITH DIAGNOSIS OF
BODY DYSMORPHIC DISORDER SUBMITTED TO RHINOPLASTY
Authors: Coelho Gislaine Patrícia , Soares Caio Márcio Correia , Dranka Daniela , Hurtado Johann G. G. Melcherts
Published: January 2023

Introduction: Plastic surgery is based on the aesthetic improvement of patients. The profile of the population that seeks aesthetic procedures consists of patients with low levels of self-esteem who seek beauty standards. In addition, there is a portion of these individuals who have Body Dysmorphic Disorder (BDD), and seek to improve extreme dissatisfaction with their appearance. Therefore, achieving the satisfaction of these patients in the postoperative period of cosmetic surgery becomes a challenge for surgeons. Objective: The objective of this study was to evaluate and compare the degree of satisfaction in the late postoperative period of rhinoplasty between two groups of patients, one of which was composed by patients with greater probability of having BDD. Material and Methods: A postoperative satisfaction questionnaire was applied (Rhinoplasty Outcome Evaluation, ROE) to the 30 patients on both groups. Results and Conclusion: An average difference of 4.7% was found in the ROE score between the two groups, with the group with the lowest probability of having BDD presenting the highest scores.
PREVALENCE OF EXTERNAL AND/OR INTERNAL NASAL VALVE INSUFFICIENCY IN PATIENTS WITH PRIMARY SNORING AND OBSTRUCTIVE SLEEP APNEA
Authors: Oliveira Paula Bhering de , Mariano Fernando César , Hurtado Johann G. G. Melcherts
Published: January 2023

Introduction: Nasal valve insufficiency is a distinct cause of symptomatic nasal obstruction. The nasal valve has been described as the cross-sectional area with greater resistance to the respiratory-inspiratory flow of the entire respiratory system. This subject is of scientific and academic importance, because it is an original contribution to the aid in the treatment of snoring, considering that nasal valve insufficiency is one of the causes of symptomatic nasal obstruction. This nasal alteration has gained special attention from specialists in the evaluation of the symptomatology of patients with snoring and Obstructive Sleep Apnea Syndrome. Objective: This was a prospective, quantitative, observational, and interventionist study, with the objectives of evaluating the frequency of this alteration and confirming the momentary improvement of this signal with the use of an external nasal dilator device. Methods: Thirty-one patients who sought care at the IPO Hospital (Curitiba/PR, Brazil) participated in this study to evaluate the symptoms of snoring. Patients with snoring symptoms, with no predilection for ethnicity and sex, age 18 years or older, were included. The study was conducted from October to November 2019, by means of detailed anamnesis. Results: A high prevalence of nasal valve insufficiency was identified in the analyzed patients.
Erratum
Authors: DURUKAN Ümmü Gülsüm , BATMAN Demet , ASLAN Ayşegül
Published: January 2023

The following information was added in the manuscript titled “The Analysis of Middle School Science Course Contents of Out-of-School Learning Environment Guidebooks” which was published in Volume 11 of 2022, Issue 3, https://doi.org/10.14686/buefad.990199. “AcknowledgementThe abstract of this study was previously presented at the 2nd International Conference on Science, Mathematics, Entrepreneurship, and Technology Education, which was held in November 19-22, 2020 in Bursa, Turkey.” The citation of the manuscript: Durukan, Ü. G., Batman, D., & Aslan, A. (2022). The Analysis of Middle School Science Course Contents of Out-of-School Learning Environment Guidebooks. Bartın University Journal of Faculty of Education, 11(3), 517-542, https://doi.org/10.14686/buefad.990199.
Prólogo
Authors: Fajardo Castro Leady Viky
Published: January 2023

Este libro se convierte en una guía práctica para la gestión integral de los riesgos psicosociales a partir de la evaluación, identificación e intervención de dichos factores, así como de la promoción de los factores protectores psicosociales y su importancia en los procesos de gestión humana.
FEDEX
Authors: Deutch Daniel , Gilad Amir , Milo Tova , Mualem Amit , Somech Amit
Published: January 2023

When exploring a new dataset, Data Scientists often apply analysis queries, look for insights in the resulting dataframe, and repeat to apply further queries. We propose in this paper a novel solution that assists data scientists in this laborious process. In a nutshell, our solution pinpoints the most interesting (sets of) rows in each obtained dataframe. Uniquely, our definition of interest is based on the contribution of each row to the interestingness of different columns of the entire dataframe, which, in turn, is defined using standard measures such as diversity and exceptionality. Intuitively, interesting rows are ones that explain why (some column of) the analysis query result is interesting as a whole. Rows are correlated in their contribution and so the interesting score for a set of rows may not be directly computed based on that of individual rows. We address the resulting computational challenge by restricting attention to semantically-related sets, based on multiple notions of semantic relatedness; these sets serve as more informative explanations. Our experimental study across multiple real-world datasets shows the usefulness of our system in various scenarios.
Discovering Polarization Niches via Dense Subgraphs with Attractors and Repulsers
Authors: Fazzone Adriano , Lanciano Tommaso , Denni Riccardo , Tsourakakis Charalampos E. , Bonchi Francesco
Published: January 2023

Detecting niches of polarization in social media is a first step towards deploying mitigation strategies and avoiding radicalization. In this paper, we model polarization niches as close-knit dense communities of users, which are under the influence of some well-known sources of misinformation, and isolated from authoritative information sources. Based on this intuition we define the problem of finding a subgraph that maximizes a combination of (
i
) density, (
ii
) proximity to a small set of nodes
A
(named
Attractors
), and (
iii
) distance from another small set of nodes
R
(named
Repulsers
).

Deviating from the bulk of the literature on detecting polarization, we do not exploit text mining or sentiment analysis, nor we track the propagation of information: we only exploit the network structure and the background knowledge about the sets
A
and
R
, which are given as input. We build on recent algorithmic advances in supermodular maximization to provide an iterative greedy algorithm, dubbed
Down in the Hollow
(dith), that converges fast to a near-optimal solution. Thanks to a novel theoretical upper bound, we are able to equip dith with a practical device that allows to terminate as soon as a solution with a user-specified approximation factor is found, making our algorithm very efficient in practice. Our experiments on very large networks confirm that our algorithm always returns a solution with an approximation factor better or equal to the one specified by the user, and it is scalable. Our case-studies in polarized settings, confirm the usefulness of our algorithmic primitive in detecting polarization niches.
Mining Bursting Core in Large Temporal Graphs
Authors: Qin Hongchao , Li Rong-Hua , Yuan Ye , Wang Guoren , Qin Lu , Zhang Zhiwei
Published: January 2023

Temporal graphs are ubiquitous. Mining communities that are bursting in a period of time is essential for seeking real emergency events in temporal graphs. Unfortunately, most previous studies on community mining in temporal networks ignore the bursting patterns of communities. In this paper, we study the problem of seeking bursting communities in a temporal graph. We propose a novel model, called the (
l
, δ)-maximal bursting core, to represent a bursting community in a temporal graph. Specifically, an (
l
, δ)-maximal bursting core is a temporal subgraph in which each node has an average degree no less than δ in a time segment with length no less than
l.
To compute the (
l
, δ)-maximal bursting core, we first develop a novel dynamic programming algorithm that can reduce time complexity of calculating the segment density from
O
(|
T
|)
2
to
O
(|
T
|). Then, we propose an efficient updating algorithm which can update the segment density in
O
(
l
) time. In addition, we develop an efficient algorithm to enumerate all (
l
, δ)-maximal bursting cores that are not dominated by the others in terms of
l
and δ. The results of extensive experiments on 9 real-life datasets demonstrate the effectiveness, efficiency and scalability of our algorithms.
Budget-Conscious Fine-Grained Configuration Optimization for Spatio-Temporal Applications
Authors: Richly Keven , Schlosser Rainer , Boissier Martin
Published: January 2023

Based on the performance requirements of modern spatio-temporal data mining applications, in-memory database systems are often used to store and process the data. To efficiently utilize the scarce DRAM capacities, modern database systems support various tuning possibilities to reduce the memory footprint (e.g., data compression) or increase performance (e.g., additional indexes). However, the selection of cost and performance balancing configurations is challenging due to the vast number of possible setups consisting of mutually dependent individual decisions. In this paper, we introduce a novel approach to jointly optimize the compression, sorting, indexing, and tiering configuration for spatio-temporal workloads. Further, we consider horizontal data partitioning, which enables the independent application of different tuning options on a fine-grained level. We propose different linear programming (LP) models addressing cost dependencies at different levels of accuracy to compute optimized tuning configurations for a given workload and memory budgets. To yield maintainable and robust configurations, we extend our LP-based approach to incorporate reconfiguration costs as well as a worst-case optimization for potential workload scenarios. Further, we demonstrate on a real-world dataset that our models allow to significantly reduce the memory footprint with equal performance or increase the performance with equal memory size compared to existing tuning heuristics.
Synchronisation of wearable inertial measurement units based on magnetometer data
Authors: Spilz Andreas , Munz Michael
Published: January 2023

Objectives

Synchronisation of wireless inertial measurement units in human movement analysis is often achieved using event-based synchronisation techniques. However, these techniques lack precise event generation and accuracy. An inaccurate synchronisation could lead to large errors in motion estimation and reconstruction and therefore wrong analysis outputs.

Methods

We propose a novel event-based synchronisation technique based on a magnetic field, which allows sub-sample accuracy. A setup featuring Shimmer3 inertial measurement units is designed to test the approach.

Results

The proposed technique shows to be able to synchronise with a maximum offset of below 2.6 ms with sensors measuring at 100 Hz. The investigated parameters suggest a required synchronisation time of 8 s.

Conclusions

The results indicate a reliable event generation and detection for synchronisation of wireless inertial measurement units. Further research should investigate the temperature changes that the sensors are exposed to during human motion analysis and their influence on the internal time measurement of the sensors. In addition, the approach should be tested using inertial measurement units from different manufacturers to investigate an identified constant offset in the accuracy measurements.
Avoidance of axonal activation in epiretinal implants using short biphasic pulses
Authors: Werginz Paul , Corna Andrea , Zeck Günther
Published: January 2023

Retinal implants allow patients suffering from degenerative retinal diseases to regain visual percepts. Despite considerable effort in developing and improving retinal neuroprostheses in the last decades, the restored vision in patients does not achieve sufficient quality. The elicited percepts do not accurately match the stimulating pixels and therefore the formation of high acuity vision is hindered. One of the main obstacles in epiretinal implants is the concurrent activation of cells close to a stimulating electrode and cells that have their axons traversing the electrode. In this study, we use computational modeling to examine the effect of pulse duration on the selectivity of focal versus non-focal activation. Our results suggest that biphasic pulses in the range of 10-20 microseconds can prevent axonal activation while still reliably activating target neurons.
The evoked compound nerve action potential is shaped by the electrical pulse-width
Authors: Proksch Johannes , Vargas Luna Jose Luis , Eickhoff Steffen , Mayr Winfried , Jarvis Jonathan C.
Published: January 2023

Introduction: Despite its central role in medicine electrical stimulation (ES) is still limited by its selectivity. Different reports did assess effects of different waveforms, intensities, and frequency on the activation threshold of nerve fibres with different diameters. We aimed to extend this knowledge by investigating the effect of short monophasic rectangular pulses (1, 2, 5, 10, 50, 100 and 200 μs) on the recruitment order. Methods:The sciatic nerve of rats was stimulated, and the evoked compound nerve action potential (CNAP) measured at two sites on the tibialis nerve, using epineural electrodes. Changes in delay, amplitude, and the shape of the CNAP were analyzed. Results:The amplitude and delay of the CNAP were significantly affected by the pulse-width (PW). The delay and duration of the compound nerve action potential increased with longer PW, while the amplitude decreased. Discussion:Found changes are likely caused by changes in the time point of excitation of individual neuron fibres, depending on electrical field strength and exposure time. This might be of particular interest when selecting PWs for design and validation of stimulation patterns and analysis of experimental and clinical observations.
Real-world assessment of the clinical performance of COVID-VIRO ALL IN rapid SARS-CoV-2 antigen test
Authors: Pighi Laura , Henry Brandon M. , De Nitto Simone , Gianfilippi Gianluca , Salvagno Gian Luca , Lippi Giuseppe
Published: January 2023

Objectives

Since the external validation of severe acute respiratory syndrome coronavirus 2 antigen rapid diagnostic tests (SARS-CoV-2 RDT-Ags) is a necessary requisite before they can be introduced into routine clinical practice, this study reports the results of a real-world assessment of the clinical performance of the new COVID-VIRO ALL IN device.

Methods

The study population consisted in 165 outpatients (median age: 43 years, range: 14–68 years; 66.1% females) who had paired nasal and nasopharyngeal samples collected upon hospital presentation. The samples were concomitantly tested with the AAZ-LMB COVID-VIRO ALL IN SARS-CoV-2 RDT-Ag and with Cepheid Xpert Xpress SARS-CoV-2 real-time reverse transcription polymerase chain reaction (RT-PCR).

Results

The number of subjects with positive RT-PCR results (i.e., mean Ct value <45) was 116 (70.3%), 109 (66.1%) and 86 (52.1%) with mean Ct values <37 and <30, respectively. In all RT-PCR positive samples, COVID-VIRO ALL IN displayed 78.8% agreement, 0.698 sensitivity, 1.000 specificity, 0.583 negative predictive value (NPV) and 1.000 positive predictive value (PPV) compared to RT-PCR. The median Ct value of samples testing positive with COVID-VIRO ALL IN was significantly lower than those testing negative (22.8 vs. 32.2; p<0.001). In samples with high viral load (i.e., Ct value <30), COVID-VIRO ALL IN displayed 92.1% agreement, 0.895 sensitivity, 0.949 specificity, 0.983 NPV and 0.951 PPV compared to RT-PCR.

Conclusions

Although the diagnostic performance of COVID-VIRO ALL IN do not exactly match those of the manufacturer, its high NPV in high viral load samples would enable fast-track and rapid identification of highly contagious subjects.
First-principles calculations to investigate the thermal response of the ZrC(1−x)N
x
ceramics at extreme conditions
Authors: Alipour Hassan , Hamedani Ali , Alahyarizadeh Ghasem
Published: January 2023

We present the thermodynamic properties of ZrC(1−x)N
x
ceramics at elevated temperature (0–1,000 K) and pressure (0–150 GPa) conditions, explored by density functional theory. We implemented the Debye–Grüneisen quasi-harmonic model in our calculations. In our investigation, we cover elastic constants, elastic moduli, compressibility, ductility/brittleness, hardness, sound velocities, minimum thermal conductivity, melting temperature, anisotropy indices, isothermal bulk modulus, heat capacities, entropy, Debye temperature, Grüneisen parameter, thermal expansion coefficient, and thermal pressure. We address the effect of the structural anisotropy and bonding nature of ZrC(1−x)N
x
compounds on their thermal response to extreme conditions. Considering ZrC(1−x)N
x
with the x in the range of 0.0, 0.25, 0.5, 0.75, and 1.0, ZrC0.50N0.50 stands out in the response to the applied conditions. At higher temperatures, the thermal expansion of the ZrC0.50N0.50 shows a smaller increase, which makes it a favorable candidate for coating material in cutting tools against commonly used ZrN and ZrC ceramics. Similar behavior is observed for the heat capacity by increasing pressure at higher temperatures, where a smaller reduction is observed. It could be interpreted as a more stable response regarding the application-specific design conditions.
Dual uniformities in function spaces over uniform continuity
Authors: Gupta Ankit , Sarma Ratna Dev , Alshammari Fahad Sameer , George Reny
Published: January 2023

The notion of dual uniformity is introduced on

U
C

(

Y
,
Z

)

UC(Y,Z)

, the uniform space of uniformly continuous mappings between

Y

Y

and

Z

Z

, where

(

Y
,
V

)

(Y,{\mathcal{V}})

and

(

Z
,
U

)

(Z,{\mathcal{U}})

are two uniform spaces. It is shown that a function space uniformity on

U
C

(

Y
,
Z

)

UC(Y,Z)

is admissible (resp. splitting) if and only if its dual uniformity on

U

Z

(

Y

)

=

{

f

2

−
1

(

U

)

∣

f
∈
U
C

(

Y
,
Z

)

,
U
∈
U

}

{{\mathcal{U}}}_{Z}(Y)=\{{f}_{2}^{-1}(U)\hspace{0.33em}| \hspace{0.33em}f\in UC(Y,Z),U\in {\mathcal{U}}\}

is admissible (resp. splitting). It is also shown that a uniformity on

U

Z

(

Y

)

{{\mathcal{U}}}_{Z}(Y)

is admissible (resp. splitting) if and only if its dual uniformity on

U
C

(

Y
,
Z

)

UC(Y,Z)

is admissible (resp. splitting). Using duality theorems, it is also proved that the greatest splitting uniformity and the greatest splitting family open uniformity exist on

U

Z

(

Y

)

{{\mathcal{U}}}_{Z}(Y)

and

U
C

(

Y
,
Z

)

UC(Y,Z)

, respectively, and these two uniformities are mutually dual splitting uniformities.
On-chip micro-ring resonator array spectrum detection system based on convex optimization algorithm
Authors: Chen Xinyang , Gan Xuetao , Zhu Yong , Zhang Jie
Published: January 2023

We propose an all on-chip micro-ring resonator array spectrum detection system (MRRAS). Micro-ring resonator array as the core is used to construct the transmission matrix of the system. The theoretical analysis of the spectrum detection system is completed with waveguide transmission theory and spectrum construction method based on convex optimization algorithm. In the experiment, we obtain the priori information of the transmission matrix of the system, then detect the output intensity of unknown spectrum through MRRAS, and construct the under-determined matrix equations when the number of micro-rings is much smaller than that of reconstructed wavelengths. Convex optimization algorithm is employed to obtain the least norm solution of the under-determined matrix equations, which enables fast spectrum reconstruction. The experimental results show that the spectrum detection system is constructed using three micro-ring resonators with 4 μm radius, enabling the compact footprint. In addition, the silicon nitride based photonic platform is fully compatible with standard complementary metal oxide semiconductor (CMOS) processes. The system operating bandwidth is more than 12 nm and the resolution is better than 0.17 nm.
Crystal structure of 7-hydroxy-6-(2-hydroxyethyl)-2H-chromen-2-one, C11H10O4
Authors: Huang Hua , Yang Jing , Sun Yi-chun , Ye Jiang-Hai , He Kang , Zou Juan
Published: January 2023

C11H10O4, monoclinic, Pn (no. 7), a = 4.8622(5) Å, b = 6.7853(7) Å, c = 14.3349(17) Å, β = 96.556(3)°, V = 469.84(9) Å3, Z = 2, Rgt
(F) = 0.0512, wRref
(F
2) = 0.1249, T = 273(2) K.
On representation of conflict in modern academic discourse
Authors: Vartanova Elena , Gladkova Anna , Dunas Denis
Published: January 2023

This article discusses media researchers’ understanding of the term “conflict,” what types of experience objects social scientists include in this category, and the possibility of categorization and theoretical understanding of these objects in the context of modern media research in Russia and abroad. Also discussed are the theoretical issues of the interaction between media and conflict, theory-based methodology of conflict research, and the types and key subjects of conflict, which have become the subjects of empirical research on scientific papers published in major media academic journals at home and abroad. In discussing the study’s empirical results, the necessity of cultivating ethical and moral values in the media, according to Habermas’s communicative behavior theory where he opposes the anti-values of conflict, was raised.
KARALAHNA ŞARAPLARININ FENOLİK BİLEŞENLERİ ÜZERİNE FERMANTASYON TEKNİĞİ VE ŞİŞEDE DEPOLAMANIN ETKİSİ
Authors: ŞİŞLİ Burcu , ÇELEBİ UZKUÇ Nesrin Merve , BAYHAN Aslı , KIRCA TOKLUCU Ayşegül
Published: January 2023

Bu çalışmada, ticari maya ve spontan fermantasyon teknikleri ve 6 ay şişede depolamanın Karalahna şaraplarının fenolik madde profilleri ve renk özellikleri üzerine etkileri araştırılmıştır. Ticari maya fermantasyonu ile elde edilen şarapların toplam monomerik antosiyanin miktarının, spontan fermantasyonla üretilen şaraplara göre istatistiksel açıdan daha yüksek olduğu saptanmıştır. Malvidin-3-glikozit konsantrasyonunun, alkol fermantasyonu sonunda ticari maya ile üretilen örneklerde yaklaşık %35 daha fazla olduğu belirlenmiştir. Şarapların fenolik bileşik kompozisyonu da uygulanan fermantasyon tekniğine bağlı olarak değişiklik göstermiştir. Genel olarak, ticari maya ile üretilen şaraplarda fenolik bileşiklerin konsantrasyonlarının spontan fermantasyonla üretilen şaraplara kıyasla daha yüksek olduğu bulunmuştur. Depolama süreci sonunda monomerik antosiyaninlerin her iki fermantasyon tekniğinde de yaklaşık %70 düzeyinde azaldığı belirlenirken, şarapların toplam fenolik madde miktarlarında istatistiksel açıdan bir fark görülmemiştir.