bluuebunny/crossref_metadata_2025_split huggingface dataset:
Forming limit diagram and optimization of process parameters in SPIF of Inconel 625 aviation-grade superalloy
Authors: Bishnoi Pawan , Chandna Pankaj 
Published: October 2023

Purpose
This paper aims to optimize the single-point incremental forming process variables for realizing higher formability in Inconel 625 components and to plot the forming limit diagram for Inconel 625 aviation-grade superalloy.

Design/methodology/approach
The formability of Inconel 625 components has been measured in terms of major strain, minor strain and minimum sheet thickness. Response surface methodology with desirability function analysis has been used to achieve maximum formability. The finite element analysis has been conducted at optimal parametric setting.

Findings
The derived forming limit diagram proves that the maximum forming limit for Inconel 625 is 57.5° at the optimal parametric setting, achieved with desirability of 0.995. The outcomes of finite element analysis conducted at optimal parametric setting show excellent agreement with confirmation experiment results.

Practical implications
Inconel 625 superalloy is frequently used in aircraft and other high-performance applications for its superior strength.

Originality/value
It has been suggested that to enhance formability, higher tool rotation speed, minimum step-size, larger tooltip diameter and higher wall angle must be used. Wall angle is the governing parameter among all the parameters.
Macy’s, Inc.: “Polaris” turnaround strategy and the road ahead
Authors: Bodhanwala Shernaz , Bodhanwala Ruzbeh 
Published: October 2023

Research methodology
The case is written based on publicly available data from primary sources such as the company’s annual reports, company website and the company’s presentations, as well as from secondary sources comprising newspaper articles, research papers, research magazines, magazine articles, industry reports, research reports, etc. as indicated in the references. The company’s financials and peer data are sourced from the Thomson Reuters Eikon database.

Case overview/synopsis
The case examines the financial position of Macy’s, Inc., America’s largest and one of the oldest premier departmental stores, with a consolidated annual turnover of US$18,097m in the fiscal year 2020/2021 (FY, 2021). Over the previous few years, the company had been struggling with decreasing market share and profitability mainly due to increasing competition from online retailers and deep discounters, which was affecting the company’s share price. With the appointment of a new chief executive officer (CEO) in fiscal year (FY) 2017, Macy’s, Inc. undertook several changes to revive its financial health and improve its market share. However, it still registered heavy losses of US$3,944m in the FY 2020/2021, the company’s first time in the past decade. With many retailers filing for bankruptcy, was there more that Macy’s could do to improve the company’s position and regain lost investor confidence? Will its entry into emerging markets play a crucial role in its turnaround?

Complexity academic level
The case can be used in undergraduate and postgraduate courses such as accounting for managers, financial statement analysis, management accounting, introduction to accounting and advanced financial statement analysis. The case can also be effectively used to understand the primary fundamental analysis of the company that involves understanding the company’s positioning and strengths, weaknesses, opportunities and threats analysis. The case would also help business management and entrepreneurship students to get a preliminary idea about the change management process. Finally, the case can be used to familiarize students with using Microsoft Excel to build financial analysis worksheets.

Supplementary Material
Teaching notes are available for educators only.
Transportation Justice and Health
Authors: HANSMANN KELLIA J. , RAZON NA'AMAH 
Published: October 2023

Policy Points
The health care sector is increasingly investing in social conditions, including availability of safe, reliable, and adequate transportation, that contribute to improving health.
In this paper, we suggest ways to advance the impact of transportation interventions and highlight the limitations of how health services researchers and practitioners currently conceptualize and use transportation.
Incorporating a transportation justice framework offers an opportunity to address transportation and mobility needs more comprehensively and equitably within health care research, delivery, and policy.
Clinical and medico‐legal considerations in endodontics
Authors: Johnstone M , Evans M 
Published: October 2023

AbstractEndodontic treatment can be challenging for a number of reasons, including the microscopic nature of the clinical environment, reliance on tactile sensation and lack of direct visualization of the work being performed. Commonly, endodontic patients present with pain and distress, which can exacerbate an already difficult clinical situation. Complications may might arise prior to, or during treatment, despite practising with the utmost care and skill. Preventing and managing these complications can take considerable time and energy, and oftentimes assistance from or referral to more experienced colleagues is required. The aim of this review is to discuss medico‐legal considerations in endodontics, with clinical correlations and a focus on the Australian legal landscape. [Correction added on 18 October 2023, after first online publication: The abstract was amended from a structured to an unstructured abstract.]
A note on the largest sum‐free sets of integers
Authors: Jing Yifan , Wu Shukun 
Published: October 2023

AbstractGiven a set of positive integers, an old question in additive combinatorics asks that whether contains a sum‐free subset of size at least for some increasing unbounded function . The question is generally attacked in the literature by considering another conjecture, which asserts that as , . This conjecture, if true, would also imply that a similar phenomenon occurs for ‐sum‐free sets for every . In this note, we prove the latter result directly. The new ingredient of our proof is a structural analysis on the host set , which might be of independent interest.
How Eco-Spatial Edutourism Support Sustainability in Coastal Areas in South Malang, Indonesia?
Authors: Sumarmi Sumarmi , Tanjung Ardiyanto , Putra Alfyananda Kurnia , Zubaidah Siti , Shrestha Rajendra P , Suprianto Agung 
Published: October 2023

This study aimed to determine the effect of edutourism based on eco-spatial to support sustainability in coastal areas in South Malang, East Java, Indonesia. The qualitative research design is conducted at Kondang Merak Beach, Pesanggrahan Beach, Bajulmati Beach, CMC (Clungup Mangrove Conservation) Tiga Warna, Tamban Beach, and Perawan Beach, which located in South Malang Regency, East Java, Indonesia. Data were taken using participant observation, documentation, and in-depth interviews. Data analysis used qualitative analysis from Miles and Huberman, consisting of three stages, reduction, data presentation, and conclusions. The result found that each beach has unique qualities depending on the surrounding environment and can be developed into an edutourism destination. Edutourism has benefited environmental sustainability, showed in the condition of natural resources in maintained tourist attractions (mangroves, coral reefs, pine shrimp, sea pandanus, turtles, and crabs), and maintained cleanliness at tourist areas.
Effects of Manufacturing Tolerances on Double-Wall Effusion Cooling
Authors: van de Noort Michael , Ireland Peter T. , Telisinghe Janendra C. 
Published: October 2023

Abstract
As aeroengine designers seek to raise turbine entry temperatures for greater thermal efficiencies, novel cooling schemes are required to ensure that components can survive in increasingly hotter environments. By utilizing a combination of impingement cooling, pin-fin cooling, and effusion cooling, double-wall effusion cooling is well equipped to achieve the high metal cooling effectiveness required for such challenges while keeping coolant consumption at an acceptably low level. However, this high performance can drop off within the variability of common manufacturing tolerances, which can also expose cooling schemes to issues such as hot gas ingestion. This paper uses an experimentally validated low-order flow network model (LOM) to assess the cooling performance of a double-wall effusion cooling scheme employed in a high-pressure turbine nozzle guide vane, subject to the variability of geometric parameters set by their manufacturing tolerances. The relative significance of each geometric parameter is examined by varying it individually and comparing the effects on the cooling performance. A Monte Carlo analysis is then conducted to assess the likelihood of performance variation for a baseline design. Finally, multiple optimization studies are conducted for the cooling scheme, with the simultaneous objectives of reducing coolant usage and maximizing the design tolerances to reduce manufacturing cost, all while maintaining acceptable metal cooling effectiveness and backflow margins.
Redundant and scattered genetic determinants for coumarin biodegradation in
Pseudomonas
sp. strain NyZ480
Authors: Gu Yichao , Li Tao , Zhou Ning-Yi 
Published: October 2023

ABSTRACT

Coumarin (COU) is both a naturally derived phytotoxin and a synthetic pollutant which causes hepatotoxicity in susceptible humans. Microbes have potentials in COU biodegradation; however, its underlying genetic determinants remain unknown.
Pseudomonas
sp. strain NyZ480, a robust COU degrader, has been isolated and proven to grow on COU as its sole carbon source. In this study, five homologs of xenobiotic reductase A scattered throughout the chromosome of strain NyZ480 were identified, which catalyzed the conversion of COU to dihydrocoumarin (DHC)
in vitro
. Phylogenetic analysis indicated that these COU reductases belong to different subgroups of the old yellow enzyme family. Moreover, two hydrolases (CouB1 and CouB2) homologous to the 3,4-dihydrocoumarin hydrolase in the fluorene degradation were found to accelerate the generation of melilotic acid (MA) from DHC. CouC, a new member from the group A flavin monooxygenase, was heterologously expressed and purified, catalyzing the hydroxylation of MA to produce 3-(2,3-dihydroxyphenyl)propionate (DHPP). Gene deletion and complementation of
couC
indicated that
couC
played an essential role in the COU catabolism in strain NyZ480, considering that the genes involved in the downstream catabolism of DHPP have been characterized (Y. Xu and N. Y. Zhou, Appl Environ Microbiol 86:e02385-19, 2020) and homologous catabolic cluster exists in strain NyZ480. This study elucidated the genetic determinants for complete degradation of COU by
Pseudomonas
sp. strain NyZ480.

IMPORTANCE

Coumarin (COU) is a phytochemical widely distributed in the plant kingdom and also artificially produced as an ingredient for personal care products. Hence, the environmental occurrence of COU has been reported in different places. Toxicologically, COU was proven hepatotoxic to individuals with mutations in the CYP2A6 gene and listed as a group 3 carcinogen by the International Agency for Research on Cancer and thus has raised increasing concerns. Until now, different physicochemical methods have been developed for the removal of COU, whereas their practical applications were hampered due to high cost and the risk of secondary contamination. In this study, genetic evidence and biochemical characterization of the COU degradation by
Pseudomonas
sp. strain NyZ480 are presented. With the gene and strain resources provided here, better managements of the hazards that humans face from COU could be achieved, and the possible microbiota-plant interaction mediated by the COU-utilizing rhizobacteria could also be investigated.
Porcine deltacoronavirus accessory protein NS6 harnesses VPS35-mediated retrograde trafficking to facilitate efficient viral infection
Authors: Fang Puxian , Zhang Huichang , Cheng Ting , Ding Tong , Xia SiJin , Xiao Wenwen , Li Zhuang , Xiao Shaobo , Fang Liurong 
Published: October 2023

ABSTRACT
Porcine deltacoronavirus (PDCoV) is an emerging swine enteropathogenic coronavirus with the potential to infect humans. Accessory protein NS6, encoded by PDCoV, is a key factor required for optimal viral replication. However, the precise mechanism(s) used by PDCoV NS6 to function remains largely unclear. The retromer is an evolutionarily highly conserved protein complex that plays an important role in normal cellular biological processes and viral replication. In this study, we identified VPS35, a subunit of the retromer complex, as a potential NS6-interacting protein via immunoprecipitation and mass spectrometry analysis in the context of PDCoV infection. Furthermore, we confirmed the interaction of VPS35 with NS6 by co-immunoprecipitation in both an overexpression system and PDCoV-infected cells. Knockdown of VPS35 by specific small interfering RNA inhibited wild-type PDCoV infection but did not suppress the infection of recombinant PDCoVs with an NS6 deletion, demonstrating that the VPS35-NS6 interaction is required for the proviral function of VPS35. We further demonstrated that the lysosomal pathway and Golgi trafficking are required for efficient PDCoV infection and that depletion of VPS35 prevented retrograde transport of PDCoV NS6 from endosomes to the Golgi, resulting in its lysosomal degradation and the inhibition of viral production. Taken together, our findings are the first to identify VPS35 as a critical host factor required for PDCoV to establish productive infection, revealing a novel evasion mechanism of PDCoV.

IMPORTANCE
Retrograde transport has been reported to be closely associated with normal cellular biological processes and viral replication. As an emerging enteropathogenic coronavirus with zoonotic potential, porcine deltacoronavirus (PDCoV) has attracted considerable attention. However, whether retrograde transport is associated with PDCoV infection remains unclear. Our present study demonstrates that retromer protein VPS35 acts as a critical host factor that is required for PDCoV infection. Mechanically, VPS35 interacts with PDCoV NS6, mediating the retrograde transport of NS6 from endosomes to the Golgi and preventing it from lysosomal degradation. Recombinant PDCoVs with an NS6 deletion display resistance to VPS35 deficiency. Our work reveals a novel evasion mechanism of PDCoV that involves the manipulation of the retrograde transport pathway by VPS35, providing new insight into the mechanism of PDCoV infection.
The Trans-Baikal Parametric Borehole: First Evidence of the Deep Structure of the Borshchovochnyi Metamorphic Core Complex
Authors: Petrov O. V. , Kashubin S. N. , Gladkochub D. P. , Donskaya T. V. , Morozov A. F. , Kudryavtsev I. V. , Milshtein E. D. , Gorbachev V. I. , Narkisova V. V. 
Published: October 2023

Abstract
The Trans-Baikal parametric borehole drilled out a metamorphic core complex in the reference geological and geophysical profile within the Central Asian fold belt, south of the Mongol–Okhotsk suture zone. In the section of the borehole drilled to a depth of 2600 m, a set of geophysical, geological, and laboratory–analytical studies made it possible to identify three main structural elements of metamorphic core complexes: the upper plate, detachment, and the lower plate. The upper plate (slightly metamorphosed rocks) is represented by a serpentinite mélange separated from the underlying rocks of the lower plate by a zone of chlorite breccias (detachment). The lower plate as a part of the crystalline basement complex comprises rocks of granite–schist and granite–plagiogneiss subcomplexes. The granite–schist subcomplex is composed of mafic and intermediate schist with amphibolites and quartzites. Biotite granite is widespread in the section as layered veins with synkinematic signs. According to the preliminary estimates, the age of biotite granite is about 130 Ma. Schist is characterized by a mylonite structure at intervals of interbedding with biotite granite veins. In accordance with the geophysical survey data on the borehole and the petrophysical characteristics of cored rocks, the mylonite zone is the provenance of a series of inclined reflectors in the seismic RSS–CDP section, which can be traced to a depth of at least 10 km. The granite–plagiogneiss subcomplex is represented by plagiogneiss, leucogranite, and gneissic granite. In the Trans-Baikal parametric borehole, a detailed section of the Borshchovochnyi metamorphic core complex, fully characterized by core samples, was obtained. It should be considered as a reference for studying these structures. The investigation of this section will make it possible later to answer many questions about the formation and evolution of the Central Asian fold belt.
Virulence-associated genes and antimicrobial resistance patterns in bacteria isolated from pregnant and nonpregnant women with urinary tract infections: the risk of neonatal sepsis
Authors: Angulo-Zamudio Uriel A. , Flores-Villaseñor Hector , Leon-Sicairos Nidia , Zazueta-Armenta Dina , Martínez-Villa Francisco A. , Tapia-Pastrana Gabriela , Angulo-Rocha Jorge , Murillo-Llanes Joel , Barajas-Olivas Mario Francisco , Canizalez-Roman Adrian 
Published: October 2023

Uropathogenic Escherichia coli (UPEC) is classified as the major causative agent of urinary tract infections (UTIs). UPEC virulence and antibiotic resistance can lead to complications in pregnant women and (or) newborns. Therefore, the aim of this study was to determine the etiological agents of UTIs, as well as to identify genes related to virulence factors in bacteria isolated from pregnant and nonpregnant women. A total of 4506 urine samples were collected from pregnant and nonpregnant women. Urine cultures were performed, and PCR was used to identify phylogroups and virulence-related genes. Antibiotic resistance profiles were determined. The incidence of UTIs was 6.9% (pregnant women, n = 206 and nonpregnant women, n = 57), and UPEC belonging to phylogroup A was the most prevalent. The presence of genes related to capsular protection, adhesins, iron acquisition, and serum protection in UPEC was associated with not being pregnant, while the presence of genes related to adhesins was associated with pregnancy. Bacteria isolated from nonpregnant women were more resistant to antibiotics; 36.5% were multidrug resistant, and 34.9% were extensively drug resistant. Finally, UTIs were associated with neonatal sepsis risk, particularly in pregnant women who underwent cesarean section while having a UTI caused by E. coli. In conclusion, UPEC isolated from nonpregnant women carried more virulence factors than those isolated from pregnant women, and maternal UTIs were associated with neonatal sepsis risk.
Cosmological standard timers from unstable primordial relics
Authors: Cai Yi-Fu , Chen Chao , Ding Qianhang , Wang Yi 
Published: October 2023

AbstractIn this article we study a hypothetical possibility of tracking the evolution of our Universe by introducing a series of the so-called standard timers. Any unstable primordial relics generated in the very early Universe may serve as the standard timers, as they can evolve through the whole cosmological background until their end while their certain time-varying properties could be a possible timer by recording the amount of physical time elapsed since the very early moments. Accordingly, if one could observe these quantities at different redshifts, then a redshift-time relation of the cosmic history can be attained. To illustrate such a hypothetical possibility, we consider the primordial black hole bubbles as a concrete example and analyze the mass function inside a redshifted bubble by investigating the inverse problem of Hawking radiation. To complete the analyses theoretically, the mass distribution can serve as a calibration of the standard timers.
The interaction of neutrinos with phantom, quintessence, and quintum scalar fields and its effect on the formation of structures in the early universe
Authors: Yarahmadi Muhammad , Salehi Amin 
Published: October 2023

AbstractDespite the fact that the mass of the neutrinos is so small, they are produced in such vast numbers in the early Universe that their mass induces subtle effects on cosmological observables, primarily the growth of structure and the expansion history in the Universe. We consider the models where neutrino interacts with dark energy scalar field models; phantom, quintessence, and quintom. Also, we obtained the $$z_\textrm{nr}$$

z
nr

(the redshift at which a mass of neutrino $$m_{\nu }$$

m
ν

will become non-relativistic) and surveyed the effect of non-relativistic neutrinos on the structure formation. The data used in this paper are Pantheon + Analysis catalog, CMB, and BAO data. We obtained coupling constant $$\beta $$
β
for neutrino and three scalar fields and found that larger $$\beta $$
β
values will generally lead to larger neutrino mass in the Universe. For combination data, we found that the total mass of neutrino $$\sum m_{\nu }< 0.1197$$

∑

m
ν

<
0.1197

eV $$(95\% $$

(
95
%

confidence level (C.L.) for quintom model and $$\sum m_{\nu }< 0.121 $$

∑

m
ν

<
0.121

eV $$(95\% $$

(
95
%

confidence level (C.L.) for phantom model and $$\sum m_{\nu }< 0.122$$

∑

m
ν

<
0.122

eV $$(95\% $$

(
95
%

confidence level (C.L.) for quintessence model. These results are in broad agreement with the results of Planck 2018 where the total neutrino mass is $$\sum m_{\nu }<0.12$$

∑

m
ν

<
0.12

eV ($$95\%$$

95
%

C.L., TT, TE, EE + lowE + lensing + BAO). Using the neutrino mass obtained from different models, we calculated $$z_\textrm{nr}$$

z
nr

and co-moving wave number $$k_\textrm{nr}$$

k
nr

and showed that neutrinos played a role on the structure formation in the early Universe.
Conformal hairy black holes of quartic quasi-topological gravity with power-Yang–Mills source
Authors: Ali Askar , Saifullah Khalid 
Published: October 2023

AbstractWe study higher dimensional hairy black holes of quartic quasi-topological gravity in the framework of non-abelian power-Yang–Mills theory. It is shown that real solutions of the gravitational field equations exist only for positive values of quartic quasi-topological coefficient. Depending on the values of the mass, conformal coupling constants, quasi-topological coefficients, Yang–Mills magnetic charge, and nonlinearity parameter, they can be interpreted as black holes with one horizon, at most three horizons and naked singularity. It is also shown that the solution associated with these black holes has an essential curvature singularity at the centre $$r=0$$

r
=
0

. Thermodynamic and conserved quantities for these hairy black holes are computed and we show that the first law has been verified. We also check thermodynamic stability in both canonical and grand canonical ensembles. In addition to this, we also formulate new power-Yang–Mills hairy black hole solutions in pure quasi-topological gravity. The physical and thermodynamic properties of these black holes are discussed as well. It is concluded that unlike Yang–Mills black holes without scalar hair there exist stability regions for the power-Yang–Mills hairy black holes in grand canonical ensemble. Finally, we discuss the thermodynamics of horizon flat power-Yang–Mills rotating black branes and analyze their thermodynamic and conserved quantities by using the counter-term method inspired by AdS/CFT correspondence.