bluuebunny/crossref_metadata_2025 huggingface dataset:
Türkiye’de Kadın Futbolcuların Instagram’da Benlik Sunumu
Authors: TİRYAKİ Salih , KARAKUŞ Melis
Published: July 2023

Bu çalışma Türkiye’de kadın futbolcuların Instagram’da benlik sunumu performanslarına odaklanmıştır. Türkiye’de hegemonik yapının devamlılığının sağlanmasında önemli role sahip olan futbolda kadın futbolcuların medyada ve toplumda görünürlüğü oldukça azdır. Kadın futbolcular da var olan benliklerini sunmak veya yeni kimlikler yaratmak için Instagram’ı kullanmaktadır. Bu amaçla Türkiye Milli Kadın Futbol Takımı’nda yer alan 8 kadın futbolcunun Instagram’da paylamış olduğu 1191 hikâye analiz edilmiştir. Bu paylaşımların 451’inin sahne önü, 740’ının ise sahne arkası performanslarına odaklandığı belirlenmiştir. Kadın futbolcular Instagram’da sahne önünde “futbolcu” kimliklerini ön plana çıkarmayı tercih ederek hegemonik mücadele alanı yaratmaktadır. Sahne arkası performanslarında ise daha çok “kişisel yaşamlarına” odaklanan, aile, arkadaş ve kişisel fotoğraflarını paylaşarak sosyo-kültürel yapıyı, bilinmeyen yönlerini ön plana çıkarmayı tercih ermektedir.
An Investigation of the Fear of Covid-19 Levels of Adults in Terms of Psychological Symptoms and Some Demographic Variables
Authors: ALIN Tuğçe , DERİN Sümeyye
Published: July 2023

In this research, it is aimed to examine the relationship between the fear of Covid-19 and psychological symptoms and whether the fear of Covid-19 differs according to some demographic variables. 574 people (300 female, 274 male) aged at least 18 years and older participated in the research. The data of the research were provided by using the Covid-19 Fear Scale, Symptom Distress Check List (SCL-90-R) and PersonaliInformation Form. The data were analyzed in the SPSS 24 program. In the study, the fear of Covid-19 and adult psychological symptoms were found to be positively and significantly correlated. In addition, it was found that the Covid-19 fear levels of the participants didn’t differ according to gender; on the other hand, it was found that there was a significant difference according to the person staying together during the Covid-19 pandemic process, the place of residence, having children, presence of chronic illness, quarantine as a result of contact, and being infected.
Gaziantep İmalat Sanayinin Yoğunlaşma Katsayısı ile Analizi
Authors: ÖGEL Cumali , AVCI Sedat
Published: July 2023

Sanayi faaliyetlerinin coğrafi yoğunlaşmasının incelendiği çalışmada Gaziantep’te faaliyette bulunan firmaların mekânsal dağılış kalıpları incelenerek Türkiye ve Güneydoğu Anadolu Bölgesi içerisindeki yeri ortaya konmaya çalışılmıştır. Yoğunlaşmanın gösterilmesinde sıklıkla kullanılan yoğunlaşma katsayısı (Location Quotient) yöntemi kullanılmıştır. Güneydoğu Anadolu Bölgesinde faaliyette bulunan firmaların tespit edilmesinde kullanılan veriler 2020 yılında TOBB sanayi veritabanı’ndan alınarak haritalandırılmıştır. Geleneksel yöntemler ile kantitatif yöntemlerin karşılaştırıldığı çalışmada Gaziantep’te bulunan firmaların yoğunlaşma dereceleri ilçe ve sektör düzeyinde belirlenmiştir. Buna göre ilçe düzeyinde OSB’lerin bulunduğu Şehitkâmil en yüksek yoğunlaşma derecesine sahipken Şahinbey ve Nizip imalat sanayinin yoğunlaştığı diğer ilçeler olarak belirlenmiştir. Sektörel bazda incelendiğinde gıda ürünleri imalatı, tekstil ürünleri imalatı, kimyasal ürünler imalatı, kâğıt ürünleri imalatı, plastik ve deri ürünleri imalatı sektörlerinde yoğunlaşma ve uzmanlaşma düzeylerinin yüksek oluğu tespit edilmiştir.
İş Becerikliliğinin, Çalışmaya Tutkunluk Üzerindeki Etkisinde İş Tatmininin Aracılık Rolü
Authors: ARIBAŞ Ayşe Nihan
Published: July 2023

İş hayatı oldukça karmaşık ve zordur. Çalışanların iş hayatında başarı elde edebilmelerini sağlayan birçok faktör bulunmaktadır. Çalışanların işlerini gereği gibi yapabilmeleri, işlerini sevmeleri ve işten tatmin duygusu elde edebilmeleri bu başarı faktörlerini oluşturmaktadır. Bu araştırma, iş becerikliliği, çalışmaya tutkunluk ve iş tatmini arasındaki ilişkileri ve bu değişkenlerin birbirine etkilerini belirlemek amacıyla gerçekleştirilmiş olup ilgili literatür taranarak değişkenler arasındaki ilişkilere yönelik dört hipotez belirlenmiştir. Araştırma evreni, Türkiye’de Aksaray ilinde çeşitli meslek gruplarında görev yapan çalışanlardan oluşmaktadır. Nicel araştırma yöntemi kullanılan araştırmanın örneklemini ise kolayda örnekleme yöntemiyle seçilen 412 oluşturmaktadır. Araştırma hipotezleri Korelasyon ve Regresyon analizi ile sınanmış olup analiz sonucunda bütün hipotezler kabul edilmiştir. Araştırma sonuçlarına göre iş becerikliliğinin çalışmaya tutkunluk ve iş tatminini pozitif yönde etkilediği tespit edilmiştir. Ayrıca elde edilen bulgular iş becerikliliğinin çalışmaya tutkunluk üzerindeki etkisinde iş tatmininin kısmi aracılık rolünün olduğunu göstermektedir.
Türk Devletleri Teşkilatının Yeni-İşlevselcilik ve Devletlerarasıcılık Teorileri Bağlamında Değerlendirilmesi
Authors: TEKİR Gökhan
Published: July 2023

Türk Konseyi, 12 Kasım 2021 tarihinde toplanan Sekizinci Zirvesi’nde Türk Devletleri Teşkilatı adını almıştır. Türk dünyasının entegrasyonu gelişiminde önemli bir evreyi işaret eden bu gelişmenin uluslararası ilişkiler entegrasyon teorileri çerçevesinde bir analizinin yapılması Türk Devletleri Teşkilatı örgütünün yapısını anlamak ve gelecekte evrilebileceği noktalar konusunda tahminde bulunmak için önemlidir. Bu çerçeveden yola çıkan çalışma, yeni-işlevselcilik ve devletlerarasıcılık teorilerinin ışığında Türk Devletler Teşkilatı’nı incelemektedir. Çalışma, aynı zamanda Türk devletlerinin yakın zamanda karşılaştığı krizleri ve bu krizlere verdiği tepkileri karşılaştırarak Türk devletlerinin dış politika ve güvenlik gibi yüksek politika alanlarındaki entegrasyon seviyelerini analiz etmektedir. Böylece, Türk Devletleri Teşkilatı’nın nasıl bir örgüt olduğu ve bu örgütten neler beklenmesi gerektiği incelenmektedir.
Sosyal Kaygı Düzeyi ile Dijital Bağımlılık Arasındaki İlişkide Kullanım Süresinin Aracılık Rolü: Üniversite Gençliği Üzerine Bir İnceleme
Authors: BALCI Şükrü , SARITAŞ Hamide
Published: July 2023

Bu çalışmada, sosyal kaygı düzeyi ile dijital bağımlılık ilişkisinde dijital cihaz kullanım süresinin aracılık rolünün ortaya konulması amaçlanmıştır. Nicel araştırma yönteminin kullanıldığı bu çalışmada ilişkisel tarama modeli kullanılmıştır. Araştırmada elde edilen bulgular sonucunda, sosyal kaygının dijital bağımlılık üzerinde pozitif anlamlı etkisinin bulunduğu analiz edilmiştir. Bunun yanında dijital bağımlılık ile dijital cihaz kullanım süresi arasında da anlamlı ilişkinin varlığı söz konusudur. Sonuçlar, üniversite öğrencilerinin dijital bağımlılıkları üzerinde sosyal kaygı düzeyleri ve dijital cihaz kullanım sürelerinin etkisinin olduğuna işaret etmektedir. Katılımcıların sosyal kaygı düzeyleri artıkça dijital bağımlılıkları da artmaktadır. Buna dijital cihaz kullanım süresi de kısmi oranda aracılık etmektedir.
Rusya Türklerinin İlk Siyasî Temsilcisi Abdürreşid İbrahim’in Sırâtımüstakim Dergisindeki Çin İzlenimleri
Authors: KILIÇ Neslihan
Published: July 2023

Rusya Türklerinin ilk siyasi temsilcisi olarak bilinen gazeteci, yazar Abdürreşid İbrahim aynı zamanda son dönemin Evliya Çelebisi olarak da tanınmaktadır. Amerika, Avustralya ve Güney Afrika ülkeleri hariç hemen bütün dünyayı gezen Abdürreşid İbrahim, bu seyahatlere dair izlenimlerini çeşitli mecralarda kamuoyuyla da paylaşmıştır. Âlem-i İslam ve Japonya’da İntişâr-ı İslâmiyet adlı meşhur seyahatnamesinin yanında ayrıca dönemin süreli yayınlarında da seyahatlerine dair izlenimlerini kaleme almıştır. Bu izlenimlerin yayınlandığı süreli yayınlardan biri de Sırâtımüstakim dergisidir. Bu makalede Rusya Türklerinin/Müslümanlarının son dönem önemli şahsiyetlerinden Abdürreşid İbrahim’in Sırâtımüstakim dergisinde yayınlanan Çin ve Çin Müslümanlarına dair izlenimlerini içeren yazılarına yer verilmiştir. Abdürreşid İbrahim, Sırâtımüstakim dergisindeki yazılarında geleneksel İslam coğrafyasının Çin’e ve Çin Müslümanlarına kayıtsız kalmasını eleştirmekte, Müslümanların sorunlarının çözümünde İslam dünyasının bir ve beraber olmasının önemini vurgulamaktadır. Çalışmada doküman analizi yöntemi kullanılmıştır. Diğer nitel araştırma yöntemlerinde olduğu gibi doküman analizi yönteminde de araştırma konusu hakkında amprik bilgi geliştirmek ve bir anlayış oluşturmak amacıyla veriler incelenir ve yorumlanır. Bu çerçevede makaleye esas kaynaklık eden Sırâtımüstakim dergisinin konuyla ilgili yazıları doküman analizi yöntemiyle incelenmiştir.
What Style Guides Tell Secular Journalists about Muslims and Islam
Authors: Munnik Michael B.
Published: July 2023

Journalists in secular contexts report – accurately and fairly, we hope – on religious communities and events. Quantitative studies of media content and discourse have suggested a rise in reporting on religion in general and, since 9/11, Islam in particular, with misrepresentations and negative representations. I draw on findings from a new study evaluating journalistic style guides on their representation of Muslims and Islam. A researcher and I reviewed academic literature on style guides, surveyed news organisations across the UK for the tools they use, and assessed those tools. In this paper, I consider the representations that emerge in ten different resources, ranging from in-house style guides to documents prepared by charities and even that most basic of resources – the dictionary. I consider their ease of use, their currency, and the quality of their contents. I am also attentive to the political context: for example, The Guardian has a richer, fuller, and more explanatory set of entries related to the tradition and its adherents than The Daily Telegraph, and this matches assessments of how these news organisations treat Muslims and Islam. From this, I comment on the adequacy of these style guides for such an important news topic in the 21st Century and problematise the utility of style guides in general as a resource for uncertain journalists.
Presidential Address for the ismrc Virtual Conference 2021
Authors: Sumiala Johanna
Published: July 2023

In this presidential address to the International Society for Media, Religion and Culture (ismrc) I argue for the relevance of studying digital religion as a public phenomenon in one particular context: within the structures of hybrid media. While hybrid as a concept has achieved, in recent years, considerable interest in media and communication studies, it has also been addressed in the study of digital religion. Here, I wish to provide a structure-oriented approach to such hybrid media and argue how this approach could provide a valuable contribution to the study of digital religion in the future.
The Political Economy of Human Development: Colonial Asia, 1900–2000
Authors: Tomlinson B. R. (Tom)
Published: July 2023

How did Asian states and peoples try to achieve better lives across the twentieth century, and how far did they succeed? Modern discussions of development concentrate on the importance of enhancing personal capabilities and human development, rather than on simple economic growth. The comparative history of colonial Asian countries, both before and after political independence, shows the range of economic, political, social, and environmental conditions necessary for such improvements. Increases in life expectancy across the range of countries are a useful metric to compare public health and the supply of basic needs. Countering endemic disease – especially malaria – has played an important part here. One key to success in the fight against malaria has been the ability of states, local authorities, and communities to provide support-based security to those who require it. Some colonial Asian countries have been better at this than others and have prospered accordingly.
Navigating a Sea of Knowledge
Authors: Mukherjee Rila
Published: July 2023

This review article emphasizes the importance of using the idea of material culture as a tool for writing global histories of the maritime world. Taking the Indian Ocean as a case study, the article contends that the multiple, diverse avenues of communication reaching across its waters profoundly affected religions, cultures, and languages by way of texts and music, and through various types of imaginings like myths and invocations of sacred landscapes and seascapes.

Investigations into these ideas and things not only direct our attention away from trade histories in the seas, they also counteract the maritime blindness that prevails in the academy, because the histories that result from these investigations are much more nuanced in their understanding of space/place. Material culture, through flows that are considered to be pluricultural in nature, can therefore provide a useful lens for studying the relationship between the local and the global.
A Postcolonial Reading of Donald Sinderby’s The Jewel of Malabar: An Analysis of Colonial Engagement in Twentieth-Century Malabar
Authors: Hemachandran Revathy , Vinai Maya
Published: July 2023

Several historical accounts of colonialists’ entanglements in Malabar have been recorded. Colonialist historiography aimed to popularize the achievements of Europeans stationed in the empire. The representation of European characters in The Jewel of Malabar, a novel published in 1927 by the English soldier and writer Donald Ryder Stephens under the pen name Donald Sinderby, accepts the colonizers’ righteous intent of introducing Western culture and religion and the scientific temperament into the colonies. The article argues that a power nexus existed between the colonizers and natives (perceived as elites by various social groups) and shows how the social transactions between the two led to an internalization and proliferation of the need of the white savior. A close analysis of The Jewel of Malabar examines the nature of social transactions between the colonizer and the colonized, and demonstrates the creation of a dependency that is perceived as a symbiotic arrangement, by which some natives are protected from others while giving the colonizers a firmer command of the colony’s resources. Furthermore, the article also explores how Western modernization was used to provide a righteous intent cloaking the colonizers’ motives (conquest and exploitation) while intensifying the existing binary within colonies, that of nondangerous natives needing protection from dangerous ones, with Hindus and Moplahs playing these roles.
Exploring monsoon precipitation signal in the Peruvian tropical montane cloud forest: Andean Walnut wood anatomy plasticity
Authors: Rodríguez-Ramírez Ernesto C. , Crispin-DelaCruz Doris B. , Morales Mariano S. , Ticse-Otarola Ginette A. , Ames-Martínez Fressia N. , Guerra Anthony , Alves-Ferreira Cassiana , Requena-Rojas Edilson J.
Published: July 2023

Andean Walnut (Juglans neotropica Diels-Juglandaceae) is a long-lived, deciduous broadleaf Tropical Montane Cloud Forest (TMCF) tree species native to the Andes Cordillera; nevertheless, it has received limited attention for dendro-quantitative wood anatomical studies. Based on 70 increment cores from 50 Andean Walnut trees at two Peruvian TMCFs, two chronologies (from 1969 to 2020 and from 1964 to 2020) were developed. The xylem vessel parameters assessment allowed us to detect South American Monsoon System (SAMS) precipitation signals in the Andean Walnuts’ wood. Dendro-wood anatomical features can be assessed within an annual growth ring, which allows for assessing intra-annual past and present wood anatomy-function relationships and its climate vulnerability.
Transcendent and Immanent Efficacy in Divination: A Description and Classification of the Diviners from Hong Mai’s 洪邁 (1123–1202) Yijian zhi 夷堅志 (The Chronicles of Yijian)
Authors: Bikir Radu
Published: July 2023

The term shushu 數術 is commonly accepted to describe and include a wide range of diviners in China. But can we use the same group identifier to classify both a clairvoyant master, who is highly skilled and accurate in prognostication, and a purely technical user of shushu, who may often fail in his interpretations? The goal of this article is therefore to nuance this classification by finding other ways of categorization through close examination of the mantic specialists encountered in Hong Mai’s Yijian zhi. This examination focuses on three groups: the clairvoyants, the technicians, and the perspicacious characters. All three of these groups make use of what the author identifies as transcendent divination and immanent divination.
The Correlation of Thyroid Hormone Levels and Anti-Thyroidal Drugs on Thyroid Size, Weight, and Ease of Surgical Dissection for Thyroidectomy for Graves’ Disease
Authors: Lushefski Kelcie N. , Wolf Mary , Dove James , Fluck Marcus , Oxenberg Jacqueline C.
Published: July 2023

Background

Patients with Graves’ Disease often have a larger thyroid size than patients without thyroid disease. These patients also have elevated T3 and T4 with decreased TSH.

Purpose

We evaluate whether these thyroid labs, the use of antithyroid agents, or the size of a thyroid on ultrasound, correlate with the pathological size of a thyroid in patients who undergo total thyroidectomy for Graves’ Disease. We further determine whether these parameters affect perioperative complications.

Research Design

A retrospective review of patients undergoing total thyroidectomy for Graves’ Disease was performed from January 2004 to December 2016 in a single institution.

Study Sample

392 patients were included in the study.

Data Collection and/or Analysis

Univariate analyses were performed to compare thyroid size on US and pathology as well as weight to preoperative thyroid hormone values and medical comorbidities. Spearman rank correlation and ANOVA were used to identify factors associated with thyroid weight, total pathology size, and differences in size. Multivariate analysis was also performed to evaluate for correlation between thyroid function and perioperative complications.

Results

We found that elevated pre-operative T3 levels were associated with larger pathologic size ( P = .027) and a greater difference in pathology vs. US thyroid volumes ( P = .005), but not increased thyroid weight ( P = .286). No significant differences were found for thyroid weight, pathology size, or difference in size for TSH, T4, or any specific preoperative ATD given. Only postoperative calcium levels were found to be statistically significant for TSH < 0.27 ( P = .024) for peri-operative complications.

Conclusions

These findings may allow for more accurate preoperative planning and intraoperative expectations in patients with Graves’ Disease.
Imperialism and literature: An imperialism-oriented reading of modern Turkish literature
Authors: Bağlama Sercan Hamza , Güngör Bilgin
Published: July 2023

Postcolonial theory perceives the world as divided between the coloniser and the colonised, thus indirectly reproducing the centrality of the West. For this reason, in literary studies, postcolonial theory fails to cover the literatures of those nations which were not colonised in a typical sense but rather occupied by Western imperialism, as was the case with Ottoman Turkey. This necessitates a convergent theoretical framework that might help evaluate the fictionalisation of the intersecting dynamics of oppression, violence, exploitation, and resistance in relation to the hegemonic narratives of imperialism and shape a new perspective regarding the politico-cultural dimension of imperial discourse. This article, in this respect, will critically develop the theoretical foundations of imperialism-oriented literary theory and construct it as an interdisciplinary field that has a potential to contribute to contemporary postcolonial theory and to encompass the intersectional dimensions of imperialism and imperial discourse for the articulation of the fictionalisation of imperialism-related issues in the under-considered corpus of modern Turkish literature.
Reexamining Modified Labeling Theory: A Sample of Incarcerated Women With Mental Illness
Authors: King Sarah E. , Smith Hayden P.
Published: July 2023

The current study reexamines modified labeling theory with a sample of 15 women incarcerated in two medium-security prisons and who have a diagnosable mental illness. Life history calendars (LHC) were employed to document traumatic histories and a host of risks and needs. Qualitative findings indicate that these women negotiated labels of mental illness and incarceration. The labeling process, particularly self-concept, self-esteem, and stigma, emerged as driving forces for criminal behavior, dysfunctional interpersonal relationships, and decision-making. Participants negotiated the label of mental illness, while making meaning of early and continued trauma. These findings are explained with reference to trauma-informed care (TIC), improved staff training, and the role of language. This study offers evidence that labeling concepts may serve as a language foundation for providing trauma-informed services.
Did Changes to Disciplinary Segregation Policy Affect Rates of Institutional Misconduct?
Authors: McNeeley Susan
Published: July 2023

Due to concerns about the harmful effects of restrictive housing, the Minnesota Department of Corrections reduced the maximum disciplinary segregation sentence length from 720 days (about 2 years) to 90 days in September 2016. Then, in response to a perceived increase in violence within the facilities, the policy was changed again in July 2019 to allow for maximum segregation sentences of nearly a year for the most serious offenses. This study employs a quasi-experimental design to empirically test whether and how these changes affected total misconduct, violent misconduct, and incarcerated-person-on-staff assault within Minnesota prisons. The results of interrupted time series analyses showed a moderate, statistically significant initial increase in violent misconduct after the reduction in segregation sentence length in September 2016. There were also statistically significant and larger initial increases in both violent and total misconduct after the July 2019 increase in segregation sentence length for serious infractions.
Reclaiming public service ethics through algorithms: Implications for teaching and development
Authors: Morrison Alexandra , Wellstead Adam M , Dickinson Helen
Published: July 2023

The use of algorithms and automation of public services is not new, but in recent years there has been a step change in processing power and a decrease in the price of these technologies, which means we are seeing more widespread use. These advances are reframing our perception of what matters in ways that impact the ethical dimensions of day-to-day life. In turn, these changes challenge long-standing assumptions about public service ethics and how it is taught. In this multidisciplinary authored paper, we argue that public service leaders must be attentive to ethical questions that converge around adopting “data-driven” techniques, including algorithmic decision-making. Algorithmic and technology focused ethics question assumptions about the current deficits within public service ethics pedagogy in public service programs and university programs and the future direction of the discipline. To do so raises longstanding but neglected questions about the public services’ role in the state and recovering what Rohr refers to as the ‘ethics of the office.’ This, we argue, will have implications for teaching public service ethics.
Complex Case of Skull Base Osteomyelitis Secondary to Chronic Otitis Media
Authors: Petrovic Masa , Landsberger Hannah G. , Peng Kevin A.
Published: July 2023

We present a case of a 58-year-old male with type II diabetes managed with metformin and insulin, who presented to the clinic with left chronic otitis media, persistent drainage, a stenotic meatus, and a prior history of 3 canal wall-down mastoidectomies and antibiotic therapy. A revision tympanoplasty with mastoidectomy was performed, and during the postoperative period, the patient had persistent pain and otorrhea, which were managed with opioids and several courses of antibiotic therapy. After symptoms persisted, imaging and culture ultimately led to the diagnosis of fungal skull base osteomyelitis, which was eventually treated successfully. While these complications are rare, their likelihood is increased with treatment delay and in the immunocompromised patient. Close management of immunocompromised patients, including diabetic patients, is vital in identifying complications early to aid in timely diagnosis and treatment to lead to the best possible outcome.
A Case of Left Carotid Artery Injury
Authors: Parvizi David , Petrovic Masa , Kai Simmons Jordan , Bastien Amanda , Tang Dennis M.
Published: July 2023

Invasive pituitary adenomas can infiltrate the dura mater, sphenoid sinus, or cranial bone. Endoscopic transsphenoidal sinus surgery is considered the standard of care; however, several potential complications must be noted. These complications can include cerebrospinal fluid leaks, infection, bleeding, optic nerve damage, and endocrinological complications such as diabetes insipidus. We present a case of a 69-year-old female with multiple recurrent invasive pituitary adenomas who has previously undergone 5 transsphenoidal procedures. Intraoperatively, the patient suffered from a left-sided carotid artery injury that was repaired with a muscle graft. Management of carotid artery injury during transsphenoidal surgery is optimized in a step-by-step approach which includes early recognition of the injury, briefing the surgical team, immediate control using compression, use of additional tissue graft for wound repair, and postoperative care. Through the use of the approach mentioned above, we were able to control the complication successfully.
Hippocampal phase precession is preserved under ketamine, but the range of precession across a theta cycle is reduced
Authors: Speers Lucinda J , Sissons Daena J , Cleland Lana , Bilkey David K
Published: July 2023

Background:

Hippocampal phase precession, which depends on the precise spike timing of place cells relative to local theta oscillations, has been proposed to underlie sequential memory. N-methyl-D-asparate (NMDA) receptor antagonists such as ketamine disrupt memory and also reproduce several schizophrenia-like symptoms, including spatial memory impairments and disorganized cognition. It is possible that these impairments result from disruptions to phase precession.

Aims/methods:

We used an ABA design to test whether an acute, subanesthetic dose (7.5 mg/kg) of ketamine disrupted phase precession in CA1 of male rats as they navigated around a rectangular track for a food reward.

Results/outcomes:

Ketamine did not affect the ability of CA1 place cells to precess despite changes to place cell firing rates, local field potential properties and locomotor speed. However, ketamine reduced the range of phase precession that occurred across a theta cycle.

Conclusion:

Phase precession is largely robust to acute NMDA receptor antagonism by ketamine, but the reduced range of precession could have important implications for learning and memory.
Establishment and characterization of a novel cell line and xenotransplant mouse model derived from feline colorectal adenocarcinoma
Authors: Uneyama Mizuho , Chambers James K. , Fujii Tadashi , Nakashima Ko , Uchida Kazuyuki
Published: July 2023

Colorectal adenocarcinoma is an aggressive malignant tumor in cats that frequently metastasizes to the lymph nodes and/or distant organs. However, research on feline colorectal adenocarcinoma is limited, and experimental models have not been established. A novel cell line, FeLeco-G7, was established from the lymph node of a 12-year-old spayed female Maine Coon cat with metastatic colorectal adenocarcinoma. FeLeco-G7 cells were polygonal with abundant cytoplasm and adherent growth. The population-doubling time was approximately 28.3 hours, and the mean number of chromosomes was 37.6±0.1 per cell (ranging between 32 and 41). Consistent with the original tumor, FeLeco-G7 cells were immunopositive for cytokeratin (CK) 20 and CDX2, and immunonegative for CD10 and CK7. Nuclear accumulation of β-catenin was rarely observed. Mutation analysis suggested TP53 gene alterations. A subcutaneous injection of FeLeco-G7 cells into immunodeficient mice resulted in the formation of a mass at the injection site without the development of metastatic lesions. An orthotopic (intrarectal) transplantation of FeLeco-G7 cells caused cachexia and diffuse involvement of the rectal mucosa in one of the 3 mice and the formation of masses around the rectum in the other 2 mice. Metastases to the regional lymph nodes and lungs were detected in three of the 3 and one of the 3 mice, respectively. The histological findings and immunohistochemical features of these masses were similar to those of the original tumor. These results suggest that FeLeco-G7 cells and the orthotopically transplanted mouse model are valuable tools for further molecular and therapeutic research on feline colorectal adenocarcinoma.
CitySim: A Drone-Based Vehicle Trajectory Dataset for Safety-Oriented Research and Digital Twins
Authors: Zheng Ou , Abdel-Aty Mohamed , Yue Lishengsa , Abdelraouf Amr , Wang Zijin , Mahmoud Nada
Published: July 2023

The development of safety-oriented research and applications requires fine-grain vehicle trajectories that not only have high accuracy, but also capture substantial safety-critical events. However, it would be challenging to satisfy both these requirements using the available vehicle trajectory datasets do not have the capacity to satisfy both. This paper introduces the CitySim dataset that has the core objective of facilitating safety-oriented research and applications. CitySim has vehicle trajectories extracted from 1,140-min of drone videos recorded at 12 locations. It covers a variety of road geometries including freeway basic segments, weaving segments, expressway merge/diverge segments, signalized intersections, stop-controlled intersections, and control-free intersections. CitySim was generated through a five-step procedure that ensured trajectory accuracy. The five-step procedure included video stabilization, object filtering, multivideo stitching, object detection and tracking, and enhanced error filtering. Furthermore, CitySim provides the rotated bounding box information of a vehicle, which was demonstrated to improve safety evaluations. Compared with other video-based trajectory datasets, CitySim had significantly more safety-critical events, including cut-in, merge, and diverge events, which were validated by distributions of both minimum time-to-collision and minimum post encroachment time. In addition, CitySim had the capability to facilitate digital-twin-related research by providing relevant assets, such as the recording locations’ three-dimensional base maps and signal timings.
Evaluation of Three Federal Highway Administration Targeted Overlay Pavement Solutions for Asphalt Pavements Based on Their Performances and Potential to Increase Pavement Service Life
Authors: Mogawer Walaa S. , Austerman Alexander J. , Abdalfattah Ibrahim A. , Stuart Kevin D.
Published: July 2023

The Federal Highway Administration Targeted Overlay Pavement Solutions (TOPS) program presents innovative overlay solutions for both asphalt and concrete pavements. The objective of this study was to conduct a comparative evaluation of three TOPS types for asphalt pavements, namely, Asphalt Rubber Gap-Graded, Stone Matrix Asphalt and High-Performance Thin Overlay as regards performance, how they extend pavement service life, and whether they can be used interchangeably. Asphalt binders from two sources were used in each of these three TOPS types, thus, providing a total of six TOPS mixtures. All TOPS passed the mixture performance tests where the test had a State Transportation Agency (STA) specified or a preliminary criterion, and the test results indicated that all three TOPS types can be used interchangeably. More specifically, all six TOPS mixtures met the Massachusetts Department of Transportation’s TOPS pilot specification criteria for rutting, moisture damage, and intermediate-temperature cracking. They also passed the mixture performance tests for reflective cracking and raveling based on criteria established by other STAs. AASHTOWare® Pavement Mechanistic-Empirical Design predictive models for bottom-up fatigue cracking indicated that 2 in. of a TOPS mixture placed on an existing in-service pavement can extend pavement service life between 11.2 and 14 years depending on the type of TOPS and source of binder. The maximum difference in service life between the six TOPS was slightly less than 3 years, although most of them were within 2 years of each other. Furthermore, none of the three TOPS types could be chosen to be the best TOPS.
Comprehensive Balanced Mixture Design Protocol: Design Phase through Production Quality Assurance
Authors: Mogawer Walaa S. , Austerman Alexander J. , Stuart Kevin D. , Abdalfattah Ibrahim A. , Zhou Fujie
Published: July 2023

The objective of this study was to develop a comprehensive balanced mix design (BMD) protocol for a state highway agency (SHA) using one of the four approaches presented by both the National Asphalt Pavement Association (NAPA) and the American Association of State Highway and Transportation Officials (AASHTO). This comprehensive BMD was to ensure that a mixture design continues to be balanced from the mixture design phase to the production quality assurance (QA) phase. While existing publications by NAPA, AASHTO, and others provide a good initial framework for developing a BMD protocol, many important questions arise that are left for each SHA to answer when developing a comprehensive BMD protocol. This paper outlines these questions and how each of them was addressed. Also, a new approach for developing a pass/fail criterion for bottom-up fatigue cracking using AASHTOWare® pavement mechanistic-empirical design (PMED) predictive models is presented. Twenty-one SHA-approved plant-produced mixtures were obtained and tested to aid in the development of this pass/fail criterion. A similar approach as presented in this paper can be used by other SHAs. A comprehensive BMD protocol is presented at the end of this paper along with recommendations for future studies needed for further refinement.
Roles for the Synechococcus elongatus RNA-Binding Protein Rbp2 in Regulating the Circadian Clock
Authors: McKnight Briana M. , Kang Shannon , Le Tam H. , Fang Mingxu , Carbonel Genelyn , Rodriguez Esbeydi , Govindarajan Sutharsan , Albocher-Kedem Nitsan , Tran Amanda L. , Duncan Nicholas R. , Amster-Choder Orna , Golden Susan S. , Cohen Susan E.
Published: July 2023

The cyanobacterial circadian oscillator, consisting of KaiA, KaiB, and KaiC proteins, drives global rhythms of gene expression and compaction of the chromosome and regulates the timing of cell division and natural transformation. While the KaiABC posttranslational oscillator can be reconstituted in vitro, the Kai-based oscillator is subject to several layers of regulation in vivo. Specifically, the oscillator proteins undergo changes in their subcellular localization patterns, where KaiA and KaiC are diffuse throughout the cell during the day and localized as a focus at or near the pole of the cell at night. Here, we report that the CI domain of KaiC, when in a hexameric state, is sufficient to target KaiC to the pole. Moreover, increased ATPase activity of KaiC correlates with enhanced polar localization. We identified proteins associated with KaiC in either a localized or diffuse state. We found that loss of Rbp2, found to be associated with localized KaiC, results in decreased incidence of KaiC localization and long-period circadian phenotypes. Rbp2 is an RNA-binding protein, and it appears that RNA-binding activity of Rbp2 is required to execute clock functions. These findings uncover previously unrecognized roles for Rbp2 in regulating the circadian clock and suggest that the proper localization of KaiC is required for a fully functional clock in vivo.
A new lateral force estimator for intelligent tires based on three-dimensional ring model
Authors: Min Delei , Wei Yintao , Wang Feng , Lu Bo , Zhu Shibin
Published: July 2023

Tire lateral forces have an important impact on vehicle stability and vehicle ride comfort. In general, the intelligent tire lateral forces are estimated using lateral nodal displacements or data-based methods, which are easily disturbed by measurement noises and lack accuracy in the case of small test numbers. This paper proposes a model-based lateral force estimator for intelligent tires, which includes a mathematical model, a signal processing algorithm, and a Kalman Filter. As the core of the lateral force estimator, the mathematical model is proposed based on the three-dimensional ring model and can describe the analytical relationship between the lateral acceleration signal and the lateral force. Based on the mathematical model, the optimal state observation of the intelligent tire lateral forces is realized using a Kalman Filter. The performance of the lateral force estimator is validated through lateral slip tests under two different vertical loads performed on the MTS Flat Trac III test bench. The results show that the lateral force estimator’s average normalized root mean square (NRMS) error is 5.83%. Compared with the data-based and model-based methods in previous studies, this model-based lateral force estimator provides an efficient method to estimate the intelligent tire lateral forces using fewer tests.
Potential of adhesive bonding technology for joining thermo-mechanically modified wood composites in automotive application
Authors: Burnett Moira , Kahlmeyer Martin , Koch Christin , Winkel Andreas , Böhm Stefan
Published: July 2023

Wood composites are a sustainable alternative to lightweight materials, but most often only possess low to medium mechanical properties. The stiffness and strength of wood-based panels can however greatly be enhanced by a densification process. In this context the question arises as to whether the increase in density and the associated compaction of the cell structure have a lasting effect on the adhesion of binders and the overall bonding ability. This paper therefore investigates the extent to which thermo-hydro-mechanical compression at different pressure levels affects the adhesive infiltration into laminated beech veneer composites. For this purpose, not only the mechanical properties of the plywood are analysed, but also the infiltration of polyurethane and polyvinyl acetate adhesives by fluorescence microscopy. Results show that although the infiltration capacity of the adhesives is impaired by the densification, higher degrees of compression are also accompanied by superior mechanical properties.
On monitoring fretting fatigue damage in solid railway axles by acoustic emission with unsupervised machine learning and comparison to non-destructive testing techniques
Authors: Carboni Michele , Zamorano Marta
Published: July 2023

Railway axles are safety-critical components of the rolling stock and the consequences of possible in-service failures can have dramatic effects. Although this element is traditionally designed against such failures, the initiation and propagation of service cracks are still occasionally observed, requiring an effective application of non-destructive testing and structural health monitoring approaches. This paper investigates the application of structural health monitoring by acoustic emission to the case of solid railway axles subject to fretting fatigue damage. A full-scale test was performed on a specimen in which artificial notches were suitably manufactured in order to cause the initiation and evolution of fretting fatigue damage up to the stage of relevant propagating fatigue cracks. During the test, both periodical phased array ultrasonic inspections and continuous acquisition of acoustic emission data have been carried out. Moreover, at the end of the test, the specimen was inspected, analyzed and evaluated by visual inspection and magnetic particles testing, while acoustic emission raw data were post-processed by a special unsupervised machine learning algorithm based on an Artificial Neural Network. It is demonstrated that the proposed methodology is very effective to detect the onset of crack initiation in a non-invasive and safe way.
Multi-proxy reconstruction of climate changes in the Lower St. Lawrence Estuary, Canada, during the Middle and Late-Holocene
Authors: Wu Xiner , Lemay-Tougas Mathieu , de Vernal Anne , Garneau Michelle , Fréchette Bianca , Audet Tiffany , Hillaire-Marcel Claude
Published: July 2023

The micropaleontological and palynological content, and geochemical and isotopic composition of a marine sediment core collected off Pointe-des-Monts in eastern Québec, Canada, reveal regional palaeoclimatic and paleoceanographic conditions in the Lower St. Lawrence Estuary over the last ~8200 years. The pollen and spore content allows comparison with the terrestrial palynostratigraphy, whereas dinoflagellate cysts and benthic foraminifera are used to reconstruct sea-surface conditions and bottom water properties, respectively. The dinocyst-based reconstructions indicate shifts between estuarine and oceanic conditions with important changes in sea-surface temperature, salinity, and primary productivity. Both the dinocyst assemblages and the quantitative sea-surface estimates highlight a distinct transition at ca. 4200 cal years BP. It is notably marked by a change towards higher salinity, which suggests reduced freshwater discharge, hence lower precipitation in the watershed, during the Late-Holocene. The isotopic composition (δ18O and δ13C) and assemblages of the benthic foraminifera indicate centennial to millennial frequency variability of bottom water properties, over a general trend towards decreasing temperatures and increasing ventilation from the beginning of the Middle Holocene until the last century. Since then, reverse trends with abrupt warming and decreasing dissolved oxygen content in bottom water have been observed.
Paleoenvironmental study of the Late Preclassic period in the Northern Mesoamerican Frontier
Authors: Wogau Kurt H. , Keenan Benjamin , Arz Helge W. , Böhnel Harald N.
Published: July 2023

The Northern Mesoamerican Frontier was a complex multicultural region characterized by frequent human settlement changes and shifts in agricultural conditions during the Late Preclassic period (~400 BCE-150 CE). Here, we report a high-resolution paleoenvironmental record from the varved sedimentary sequence of the crater maar La Alberca which spans the Late Preclassic (~400 BCE-150 CE) to part of the Early Classic period (~150 CE-250 CE) corresponding to Late Chupicuaro phase (400 BCE-100 CE) and Mixtlan phase (0–250 CE). Our work aims to study the paleoenvironmental conditions during the rise of agriculture in the Northern Mesoamerican Frontier and provide insights related to landscape alteration by human activity. To reach these aims, a multiproxy investigation was conducted by means of varve counting, high-resolution XRF scans, magnetic susceptibility, pollen data and fecal stanol biomarkers as a proxy for human population change. Our results reveal two varve type. Type 1 is characterized by the alternation of detrital-organic layers and aragonite layers, type 2 by alternating detrital-organic layers with an organic layer formed by diatom frustules and aragonite layers. This study suggest that the increase of erosion by human activity during the Late Chupicuaro phase (400 BCE-100 CE) and the start of the Mixtlan phase (0–250 CE) coincide with a high percentage of Amaranthaceae pollen, a rise of sedimentation rates, increase in nutrient content and the increase of human waste flux interpreted with the (Coprostanol + epi) :((Coprostanol + epi)+cholestanol biomarker. Moreover, a wetter period (~137 BCE-37 CE) interpreted during the Late Chupiacuaro phase and the start of the Mixtlan phase could suggest favorable environmental conditions for the establishment of agriculture.
A high-resolution study of planktonic foraminifera during the Holocene at the Tilos-Symi sea basin in the SE Aegean Sea
Authors: Kozanoglou Caterina , Triantaphyllou Maria V , Geraga Maria , Rousakis Grigoris , Papatheodorou George , Arabas Agnieszka , Dimiza Margarita D , Gogou Alexandra
Published: July 2023

High-resolution data for planktonic foraminifera and their groups of ecological interest, including Herbivores and Carnivores, combined with benthic foraminifera and a great variety of biogeochemical indices from the SE Aegean sediment core ST5, contribute to a detailed study concerning major and minor climatic episodes during Holocene. The ST5 sediment record, retrieved from the Tilos-Symi marine basin, evidences the impact of the nearby land, the local climate, and the Rhodes Gyre imprint on the eastern Mediterranean water circulation. Pronounced environmental changes are detected during a preconditioning period of ~400 years before the onset of sapropel S1 deposition and during the deposition phases S1a (10.0–8.4 ka BP) and S1b (8.0–6.1 ka BP). Major freshwater influx episodes (10.5 ka BP, 9.2–8.9 ka BP, 7.4 ka BP, 4.5–4.3 ka BP, and few additional during the Late-Holocene) are revealed, prominent oxygen deficiency time intervals (including a distinct brief anoxic period) as well as several drier, cooler and warmer climatic events. Herbivore planktonic foraminifera alternate their dominance with the Carnivores at the preconditioning period before the S1 onset and at the Late-Holocene (2.0–1.5 ka BP) when conditions of good seawater circulation, oxygenation, and productivity alternate with stratified low oxygenation waters and high freshwater influx from the land.
At the Intersection of Gender and Party: Legislative Freedom
Authors: Friesenhahn Amy
Published: July 2023

This paper examines the conditional effects of legislator gender, party, and key district-level characteristics on patterns of roll-call votes. I propose and test a theory of legislative freedom conceptualized as a member of Congress’s ability to defect from their party in roll-call votes. I argue that women members of Congress (MCs) will be more able to exercise legislative freedom in women-friendly districts. I expect both Democratic and Republican women MCs representing women-friendly districts will be more likely than those representing districts that are less women-friendly to defect from party and that the women-friendly district effect will be stronger for Republican women MCs. To test these hypotheses, I use roll-call voting data, women-friendly district data (Palmer and Simon 2006), and original data collected on members of the U.S. House beginning with the 103rd Congress. In this paper, I further explore the proposed theory of legislative freedom to examine recent high-profile cases of women MCs defecting from the Republican party and the conditions in which they exercise this freedom.
Quantifying Potential Bias Resulting From Child Age on Screening for Hyperactive/Impulsive Presentations of ADHD
Authors: Anderson Nathan P. , Gaffney Devin H. , Jagadeesh Divya , Kennedy Traci M. , Kolko David J. , Lindhiem Oliver
Published: July 2023

Objective:

This study aims to quantify the potential age bias in screening of hyperactive/impulsive presentations of ADHD in children ages 5 to 12 through comparison of age-based and overall percentiles in screening.

Method:

A referred clinical sample of 307 children ages 5 to 12 with behavioral concerns completed the Vanderbilt Attention Deficit-Hyperactivity Disorder Diagnostic Parent Rating Scale (VADPRS) and were formally evaluated for ADHD with a diagnostic interview. Analysis utilizing logistic regression and receiver operating characteristic (ROC) curves was performed to compare the screening performance of agebased and overall percentiles.

Results:

The age-based percentiles demonstrated no improvement in the analyzed models compared to overall percentiles in hyperactive presentation ADHD screening. This finding was present in the overall sample and in the sub analysis of the 5 to 6 year old children.

Conclusions:

This study identifies no improvement in modeling of hyperactive/impulsive ADHD screening when considering a child’s age using age-based percentiles.