bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigation of microstructure, machinability, and mechanical properties of new-generation hybrid lead-free brass alloys
Authors: Semih Özbey , Recep Artir 
Published: February 2023

Abstract
In this study, hybrid alloys were obtained by casting method with alloy elements and additive such as Si and MoS2, which can be used instead of lead, and compared with Ecobrass and free cutting brass samples used in the market in terms of microstructure, mechanical, and machinability properties. The microstructures of lead-free hybridized brass consists of alpha, beta, and intermetallic compound which were confirmed by the results of X-Ray Diffraction analysis and Scanning Electron Microscopy-Energy Dispersive Spectroscopy. The hardness values of the beta phase in the microstructure are between 180 and 220 Vickers hardness. It has been observed that increasing the amount of beta prime phase also increases the hardness. The machinability of samples was evaluated in terms of surface roughness and chip formation. Chips obtained from samples after machining process were categorized according to ISO 6385-G1 standard. Chip morphologies were examined under optic microscope and scanning electron microscope. The surface roughness value of samples with MoS2 additives was found to be the lowest due to its lubricity effect. Moreover, morphologies, distribution of phases, and intermetallic compounds in the microstructure are found to have a great impact on the machinability and ultimate tensile strength.
Becoming smart “digital natives”: cultivating Chinese English majors’ new media literacy via Journalism English Reading and Listening
Authors: Zhang Danyang , Wu Yang 
Published: February 2023

Abstract
In the current era, digital technologies, including multimedia and communication technologies, have penetrated almost every aspect of our lives. English majors are responsible for learning English languages and western cultures and serve as interlocutors between the East and the West. Therefore, such students need to be new media literate to retrieve, understand and evaluate information from multimedia sources and actively and critically participate in the digital environment. Nevertheless, very few studies have explored this group of students’ new media literacy (NML) level or their NML development via instructed training. This mixed methods study explores a group of Chinese English majors’ current NML level. It attempts to cultivate their NML via a course named Journalism English Reading and Listening. In total, by applying purposive sampling, 70 Chinese English majors were invited to participate in the study. The participants completed a pre- and post-course questionnaire based on Lin et al.’s (2013). Understanding new media literacy: An explorative theoretical framework. Journal of Educational Technology & Society, 16(4), 160–170) NML framework to quantitatively self-evaluate their NML. Results demonstrate that the participants’ consuming media literacy significantly improved. Regarding the participants’ prosuming media literacy, three constructs, including prosuming skill, production, and creation, exhibited significant improvements, but no significant differences were found in distribution and participation. This paper also introduces examples of the students’ group work to qualitatively showcase their NML development. Finally, the study offers insights into Chinese English majors’ professional training and development.
Inverse problems for equations of a mixed parabolic-hyperbolic type with power degeneration in finding the right-hand parts that depend on time
Authors: Sabitov Kamil Basirovich , Sidorov Stanislav Nikolaevich 
Published: February 2023

Abstract
For the equation of a mixed parabolic-hyperbolic type with a power degeneration on the type change line, the inverse problems to determine the time-dependent factors of right-hand sides are studied. Based on the formula for solving a direct problem, the solution of inverse problems is equivalently reduced to the solvability of loaded integral equations. Using the theory of integral equations, the corresponding theorems for the existence and uniqueness of the solutions of the stated inverse problems are proved and the explicit formulas for the solution have been given.
Local solvability and stability of the generalized inverse Robin–Regge problem with complex coefficients
Authors: Xu Xiao-Chuan , Bondarenko Natalia Pavlovna 
Published: February 2023

Abstract
We prove local solvability and stability of the inverse Robin–Regge problem in the general case, taking eigenvalue multiplicities into account.
We develop the new approach based on the reduction of this inverse problem to the recovery of the Sturm–Liouville potential from the Cauchy data
Uniqueness and stability for inverse source problem for fractional diffusion-wave equations
Authors: Cheng Xing , Li Zhiyuan 
Published: February 2023

Abstract
This paper is devoted to the inverse problem of determining the spatially dependent source in a time fractional diffusion-wave equation, with the aid of extra measurement data at a subboundary. A uniqueness result is obtained by using the analyticity and the newly established unique continuation principle provided that the coefficients are all temporally independent. We also derive a Lipschitz stability of our inverse source problem under a suitable topology whose norm is given via the adjoint system of the fractional diffusion-wave equation.
Approach to nutritional rickets
Authors: Korkmaz Hüseyin Anıl , Padidela Raja , Ozkan Behzat 
Published: February 2023

Abstract
Rickets is the disease of a growing skeleton and results from impaired apoptosis of hypertrophic chondrocytes and mineralization of the growth plate. Nutritionally induced rickets, secondary to vitamin D and/or calcium deficiency, remains a major global problem. In this review, we discuss pathogenesis, clinical signs, investigation and management of nutritional rickets.
Performance evaluation and optimization of fixture adapter for oil drilling top drives
Authors: Louodom Chedjou Achille , Querol Marnolin , Peng Xiaobo , Zhou Jianren , Park Jaejong 
Published: February 2023

Abstract
A top drive is an essential mechanical device in oil field drilling since it provides the necessary torque for the drilling operations. Manufacturers in the oil and gas industry typically perform in-housing testing and classify the Safe Working Load of top drives. Testing a top drive requires a unique test stand, thus making testing top drives from other manufacturers a difficult challenge. A fixture adapter can be designed using geometric constraints and intuition to make testing apparatus semi-universal, yet they are often bulky and heavy, posing more significant safety concerns. This study aims to first numerically assess the existing fixture adapter and then structurally optimize it for enhancing its structural integrity and efficiency under various severe working environments. Therefore, finite element analysis (FEA) was performed on the existing fixture adapter, and compliance minimization topology optimization was employed. Four load and boundary conditions were used from the three most frequent operation scenarios for the fixture adapters: (i) drilling standby, (ii) staging area, (iii) drilling make-up, and (iv) break-up. The FEA results indicated that no safety factor was compromised with a 50% and 60% mass retention constraint via topology optimization compared to the original fixture adapter. The optimized fixture adapter was also tested under compression using printed 3D prototypes to validate the finite analysis and topology optimization processes.
Ethaline and related systems: may be not “deep” eutectics but clearly interesting ionic liquids
Authors: Buchner Richard , Agieienko Vira 
Published: February 2023

Abstract
Ethaline, the 1:2 molar ratio mixture of ethylene glycol (EG) and choline chloride (ChCl), is generally regarded as a typical type III deep eutectic solvent (DES). However, careful differential scanning calorimetry (DSC) of EG + ChCl mixtures surprisingly revealed that the liquidus lines of the phase diagram apparently follow the predictions for an ideal binary non-electrolyte mixture. Applying broad-band dielectric relaxation spectroscopy to room-temperature solutions of ChCl, and of the related salts choline iodide and chlorocholine chloride, in EG up to saturation, we explored the possible reasons for this conundrum. It appears that in these solutions free ions are rather scarce. Instead, contact ion pairs and larger aggregates predominate.
“Can I have a cup of tea please?” Politeness markers in the Spoken BNC2014
Authors: Islentyeva Anna , Pesendorfer Luise , Tolochin Igor 
Published: February 2023

Abstract
Politeness is one of the stereotypes associated with the British that seems to be crucial in terms of their self-identification and self-perception. The focus of this study is four frequently-used politeness markers: please, thank you, thanks, and sorry. The paper aims to precisely identify the different senses of these words in the newly released corpus of spoken British English, the Spoken British National Corpus 2014. The findings of this analysis reveal that the markers under investigation are primarily used in their core senses, such as politely requesting something, showing gratitude, or apologising; other identified senses include self-correcting and being confrontational or ironic. The analysis of the authentic data helps us classify senses for each of the target words based on different contextual situations.
Progress on the influence of non-enzymatic electrodes characteristics on the response to glucose detection: a review (2016–2022)
Authors: Guati Carlota , Gomez-Coma Lucía , Fallanza Marcos , Ortiz Inmaculada 
Published: February 2023

Abstract
Glucose sensing devices have experienced significant progress in the last years in response to the demand for cost-effective monitoring. Thus, research efforts have been focused on achieving reliable, selective, and sensitive sensors able to monitor the glucose level in different biofluids. The development of enzyme-based devices is challenged by poor stability, time-consuming, and complex purification procedures, facts that have given rise to the synthesis of enzyme-free sensors. Recent advances focus on the use of different components: metal-organic frameworks (MOFs), carbon nanomaterials, or metal oxides. Motivated by this topic, several reviews have been published addressing the sensor materials and synthesis methods, gathering relevant information for the development of new nanostructures. However, the abundant information has not concluded yet in commercial devices and is not useful from an engineering point of view. The dependence of the electrode response on its physico-chemical nature, which would determine the selection and optimization of the materials and synthesis method, remains an open question. Thus, this review aims to critically analyze from an engineering vision the existing information on non-enzymatic glucose electrodes; the analysis is performed linking the response in terms of sensitivity when interferences are present, stability, and response under physiological conditions to the electrode characteristics.
Risk process with mixture of tempered stable inverse subordinators: Analysis and synthesis
Authors: Kadankova Tetyana , Ng Wing Chun Vincent 
Published: February 2023

Abstract
We propose two fractional risk models, where the classical risk process is time-changed by the mixture of tempered stable inverse subordinators.
We characterize the risk processes by deriving the marginal distributions and establish the moments and covariance structure.
We study the main characteristics of these models such as ruin probability and time to ruin and illustrate the results with Monte Carlo simulations.
The data suggest that the ruin time can be approximated by the inverse gaussian distribution and its generalizations.
On timeless macroscopic spaces
Authors: Nimtz Günter , Aichmann Horst 
Published: February 2023

AbstractSommerfeld and other physicists pointed out that tunneling is no classical process. The arguments are that the tunneling wave’s momentum is imaginary and its energy is negative. However, what is the timeτspent inside a barrier? Brillouin conjectured that the non-classical behaviour is valid for waves of all fields, i.e. for electromagnetic and acoustic waves as well as for Schrödinger waves.
INTERVENSI DAN HAMBATAN PENCEGAHAN DAN PENGENDALIAN DEMAM BERDARAH DENGUE
Authors: Siyam Nur , Sukendra Dyah Mahendrasari , Santik Yunita Dyah Puspita , Prastika Yuniar Dwi , As-Syifa Al Fitra Salim , Fadila Fahma Nur , Supriyono Supriyono , Utomo Nadia Indraswari 
Published: February 2023

Pencegahan dan pengendalian demam berdarah di tataran rumah tangga menjadi kunci keberhasilan penurunan kejadian demam berdarah. Akan tetapi, hambatan dan pengendalian Aedes aegypti di rumah tangga belum diketahui terlebih lagi pada situasi pandemic COVID-19. Kami mensurvey 83 rumah tangga di komunitas risiko tinggi DBD di pinggiran Kota Semarang, Kelurahan Bandarhajo, Indonesia, tentang pengetahuan dan persepsi demam berdarah, intervensi pengendalian vektor, pengeluaran rumah tangga, hambatan dan faktor-faktor yang mempengaruhi keputusan pembelian. Hasil studi ini menunjukkan bahwa persepsi tentang kerentanan demam berdarah menurun pada masa pandemic COVID-19 (88.1% menjadi 66.3%), rumah tangga menghabiskan rata-rata bulanan sebesar Rp30,000.- (US$2.10, 14,500), atau 1.50% (kisaran: Rp5,000.-150,000.-(US$0.34-10.34, 0.25%-7.50%) dari pendapatan keluarga mereka pada intervensi pengendalian Ae. Aegypti di masa pandemic COVID-19. Rumah tangga melaporkan intervasi pengendalian paling banyak sebelum dan selama pandemic adalah memberantas sarang nyamuk, memakai lotion/ obat bakar/ semprot anti nyamuk, sedangkan pemanfaatan ikan cukup baik dan pemakain kelambu masih rendah (42.2%,). Kami menemukan 33.7% mengalami hambatan keterbatasan ekonomi, 38.6% kurang informasi, dan 47% karena perubahan pemantauan dan peran dari Tenaga kesehatan/ kader/ Stake holder selama pandemi COVID-19 dalam pengendalian vektor. Efektivitas dan kemudahan dalam aplikasi adalah faktor terpenting yang memengaruhi keputusan orang untuk membeli produk pengendalian nyamuk juga termasuk harga yang terjangkau. Temuan kami dapat menjadi dasar dalam pengembangan intervensi yang akan datang dan menjadi evidence based dalam pengambilan kebijakan oleh sektor kesehatan dan pemerintah, serta memberikan infomasi beban ekonomi terkait pengendalian demam berdarah di masa pandemic COVID-19.
Histomorphological response of D-ribose L-cysteine to ketamine-induced testicular toxicity in adult male Wistar rats
Authors: Adedotun O A , Chukwunenye C C , Balogun A F , Olawale M A , Babatunde J O , Ogunlade B 
Published: February 2023

Graphical Abstract

Abstract

Background
This study aims to study the histomorphological response of d-ribose-l-cysteine (DRLC) to ketamine-induced testicular damage in adult male Wistar rats.

Methods
A total of 20 adult male Wistar rats were used for this experiment. The animals were randomly divided into four groups (A–D) (n = 5). Group A served as the control, receiving distilled water as placebo; animals in group B were administered with 50 mg/kg body weight (bw) of ketamine only; animals in group C were administered with 50 mg/kg bw of ketamine and 30 mg/kg bw of DRLC; animals in group D were administered with 30 mg/kg bw of DRLC only. At the end of the experiment, blood was taken from the heart via cardiac puncture and stored, semen was collected from the caudal epididymis for immediate sperm analysis, while the testes were excised and preserved for histological examination and biochemical analysis.

Results
The results showed abnormalities marked by a significant decrease in the weights, sperm parameters, as well as antioxidants, serum hormonal levels and abnormal testicular microarchitecture in the rats as a result of ketamine treatment. However, DRLC exhibits significant quenching effects and attenuating activities on the ketamine-induced abnormalities by increasing the rats' weights, restoring the sperm parameters, as well as increasing the antioxidants and serum hormonal levels with restored testicular histoarchitecture.

Conclusion
DRLC in the current study attenuated the toxic effects of ketamine on the testes; therefore, it could be used as adjuvant therapy for reproductive toxicant-induced testicular toxicity due to its potent antioxidant property.

Significance statement
The testis is a vital secreting organ that produces and stores spermatozoa and is crucial for producing male sexual hormones and is thus the main target of infertility when overdoses of chemicals and toxins are introduced to it. In view of the facts above, studies of the potential of chemicals like ketamine to induce testicular toxicity are important as well as the methods aimed at mitigating this effect. Various studies have been conducted on the effectiveness of DRLC in subsiding different chronic health conditions, but there is no published literature on the effects of DRLC in ketamine-induced testicular toxicity in adult male Wistar rats. Hence we present this study.
Pendimethalin exposure disrupts mitochondrial function and impairs processes related to implantation
Authors: Kim Miji , Park Junho , An Garam , Lim Whasun , Song Gwonhwa 
Published: February 2023

In brief
Pendimethalin as a dinitroaniline herbicide is used to eliminate weeds during the cultivation of various crops such as grains, fruits, and vegetables. This study reveals that pendimethalin exposure at various concentrations led to disruption in Ca2+ homeostasis and mitochondrial membrane potential, as well as dysregulation of the mitogen-activated protein kinase signaling pathway and implantation-related genes in porcine trophectoderm and uterine luminal epithelial cells.

Abstract
The use of herbicides is a major control method in agriculture. Pendimethalin (PDM) has been increasingly used as a herbicide for approximately 30 years. PDM has been reported to cause various reproductive problems, but its toxicity mechanism in the pre-implantation stage has not been investigated in detail. Herein, we studied the effects of PDM on porcine trophectoderm (pTr) and uterine luminal epithelial (pLE) cells and identified a PDM-mediated anti-proliferative effect in both cell types. PDM exposure generated intracellular reactive oxygen species, induced excessive Ca2+ influx into mitochondria, and activated mitogen-activated protein kinase signaling pathway. Ca2+ burden resulted in the dysfunction of mitochondria and eventual disruption of Ca2+ homeostasis. Further, PDM-exposed pTr and pLE cells showed cell cycle arrest and programmed cell death. In addition, a decrease in migration ability and dysregulated expression of genes related to the functioning of pTr and pLE cells was evaluated. This study provides insight into time-dependent transitions within the cell environment after PDM exposure and elucidates a detailed mechanism of induced adverse effects. These results imply that PDM exposure can potentially cause toxic effects on the implantation-related process in pigs. Moreover, to the best of our knowledge, this is the first study to describe the mechanism by which PDM induces these effects, enhancing our understanding of the toxicity of this herbicide.
Pancreatic Intraductal Papillary Mucinous Neoplasms: A Narrative Review
Authors: Paramythiotis Daniel , Karlafti Eleni , Fotiadou Georgia , Charalampidou Maria , Karakatsanis Anestis , Ioannidis Aristeidis , Michalopoulos Antonios 
Published: February 2023

Introduction: Intraductal papillary mucinous neoplasms (IPMNs) are the most frequent cystic pancreatic neoplasm. They derive from the main pancreatic duct or branch ducts.
Aim: This narrative review aims to present and compare the current guidelines on the management of IPMNs.
Materials and methods: We reviewed the most important scientific literature on the management of IPMNs.
Discussion: The clinical presentation of IPMNs is usually non-specific; common symptoms are abdominal pain, weight loss, and jaundice. There are no sex differences, and the incidence increases with age. It is considered a premalignant lesion associated with synchronous or metachronous carcinomas. Multifocal sites within the pancreas and the presence of solid components, like mural nodules, are predictive factors for developing malignancy. Magnetic resonance imaging (MRI) is the imaging technique of choice. However, computed tomography (CT) and endoscopic ultrasound (EUS) with fine-needle aspiration (FNA) can also contribute to the diagnosis. Resection is the optimal treatment for IPMNs that arise from the main duct, while several indications are suggested for the surgery on IPMNs of branch ducts.
Conclusion: The decision on surgery is not always a simple task and should be based on high-risk features of the neoplasm. In any case, re-examination and follow-up are highly recommended.
Early Initiation of HPV Vaccination and Series Completion in Early and Mid-Adolescence
Authors: Goodman Elizabeth , Felsher Marisa , Wang Dong , Yao Lixia , Chen Ya-Ting 
Published: February 2023

Objectives
Routine human papillomavirus (HPV) vaccination has been recommended in the United States since 2006 but rates remain suboptimal. State-based studies suggest that initiation in late childhood at ages 9 to 10 years compared with the recommended early adolescent ages of 11 to 12 years improves series completion. No study with national scope has explored the early initiation-HPV series completion relationship. This study addresses this knowledge gap and explores whether early initiation might improve series completion by increasing time to target completion age (time pathway) or by moving initiation to an earlier developmental stage (development pathway).

Methods
Using data from the National Immunization Survey-Teen 2017-2020, a retrospective cohort of 19 575 15 to 17 year olds who initiated HPV vaccination between ages 9 and 12 years was assembled. Time pathway endpoints were series completion by ages 13 and 15 years. The development pathway endpoint was completion within 3 years of initiation.

Results
Early initiators were more likely to complete by ages 13 (74.0% vs 31.1%, P &lt; .001) and 15 (91.7% vs 82.7%, P &lt; .001) years but less likely to complete within 3 years (82.3% vs 84.9%, P = .007). The association of early initiation to completion was maintained in multivariable analyses for time pathway endpoints (age 13 years adjusted odds ratios [AOR] = 6.16; 95% confidence interval [CI], 5.45–6.96, age 15 years = AOR 2.56; 95% CI, 2.14–3.14) but not the development pathway endpoint (AOR = 0.93; 95% CI, 0.80–1.07).

Conclusions
Moving routine HPV vaccination to ages 9 to 10 may improve vaccination coverage rates in early and mid-adolescence. Providers should be vigilant to patient interactions after HPV series initiation to optimize public health benefits of vaccination.