bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mathematical Model of the Operation of the Gel Propulsion System
Authors: Huang Minchao , Cheng Yuqiang , Dai Jia , Li Jian 
Published: October 2024

AbstractIn establishing the mathematical model and performing computer simulation of the operation of the gel propulsion system, it was assumed that the diaphragm valve and the electric detonation valve are opened at the beginning and that the gel propellant had already filled the main pipeline of the supply system (including the catheter, the reducing catheter, the orifice catheter, filter, flow regulator, etc.). After the electric gas valve or solenoid valve is energized and opened, the gel propellant starts to fill the liquid collection chamber, capillary tube, nozzle, etc. After the propellant is added, it enters the decomposition chamber to undergo atomization, evaporation, catalysis, and decomposition to generate high-temperature and high-pressure gas. Then, the gas is accelerated in the nozzle and is ejected at high speed from the nozzle to generate thrust.
Simulation Analysis of the Starting Process of the Pump-Fed Liquid Rocket Engine
Authors: Huang Minchao , Cheng Yuqiang , Dai Jia , Li Jian 
Published: October 2024

AbstractFor the operation of a large pump-fed liquid rocket engine, the most important and critical working process is the starting process of the liquid rocket engine system. The success of starting is directly related to the success or failure of the launch of a space vehicle. During the starting process of a liquid rocket engine, very complex chemical and physical changes occur in the propellant components, and the engine system parameters change rapidly within a large range. Therefore, it is obviously important to conduct an in-depth simulation study on the starting process of a liquid rocket engine to reveal the pattern.
Nest protection and foraging behaviour in solitary and social nests of the socially polymorphic orchid bee Euglossa viridissima
Authors: Friedel A. , Quezada-Euán J. J. G. , Paxton R. J. , Soro A. 
Published: October 2024

AbstractNatural enemies impose a selective pressure on solitary insects that may favour the evolution of sociality. In the socially polymorphic orchid bee Euglossa viridissima, females found nests solitarily and provision a first batch of brood. After brood maturity, a nest can remain solitary (all offspring disperse) or become social, when one or more subordinate daughters forage for nesting material and brood provisions for the dominant mother. Solitary females leave their nest unguarded when foraging whilst a female in a social nest can guard the nest while nestmates are foraging. By observing solitary and social nests, we found that subordinate foragers in social nests undertook longer provisioning trips than solitary females. The presence of a guarding female in a social nest protected the nest against intrusion, possibly favouring longer provisioning trips. Moreover, the frequency of successful attempts by intruders to enter nests was significantly lower in social nests. Our results provide strong support for the parasite defence hypothesis for the evolution of social behaviour.
Normal Operators for Momentum Ray Transforms, I: The Inversion Formula
Authors: Jathar Shubham R. , Kar Manas , Krishnan Venkateswaran P. , Sharafutdinov Vladimir A. 
Published: October 2024

AbstractThe momentum ray transform $$I_m^k$$

I
m
k

integrates a rank m symmetric tensor field f on $${{{\mathbb {R}}}}^n$$

R

n

over lines with the weight $$t^k$$

t
k

, $$I_m^kf(x,\xi )=\int _{-\infty }^\infty t^k\langle f(x+t\xi ),\xi ^m\rangle \,\textrm{d}t$$

I
m
k

f

(
x
,
ξ
)

=

∫

-
∞

∞

t
k

⟨
f

(
x
+
t
ξ
)

,

ξ
m

⟩

d
t

. We compute the normal operator $$N_m^k=(I_m^k) ^*I_m^k$$

N
m
k

=

(

I
m
k

)

∗

I
m
k

and present an inversion formula recovering a rank m symmetric tensor field f from the data $$(N_m^0f,\dots ,N_m^mf)$$

(

N
m
0

f
,
⋯
,

N
m
m

f
)

.
Abdominal Etching—A Novel Classification Method for Surgical Approach
Authors: Levy Avraham , Berl Ariel , Shir-az Ofir , Mann Din , Weiss Eitam , Shalom Avshalom 
Published: October 2024

Abstract

Background
The abdomen is the aesthetic and physical center of the body. Abdominal etching is used to enhance the appearance of the abdominal musculature. Body contouring and abdominal etching are popular among both men and women, and these procedures have been shown to result in high patient satisfaction and are considered safe. The aim of this study was to describe a novel classification for abdominal etching based on the senior author’s technique and experience.

Methods
This single surgeon, nonrandomized, retrospective study was conducted from December 2016 to September 2022. Patients were classified into 4 groups based on their body habitus, abdominal skin pinch test and skin quality, and the surgical plan was tailored accordingly.

Results
Sixty-two patients (42 male) with an average age of 36 years underwent abdominal etching during the study period. Subgrouping included 4 (6.45%) in Class 1, 22 (35.5%) in Class 2, 32 (51.6%) in Class 3 and 4 (6.45%) in Class 4. The most common complication was seroma. Concomitant procedures included silicone implants to the pectoral region (male), fat injection to the buttocks, breast reduction and mastopexy and treatment of post-liposuction irregularities.

Conclusions
The abdominal etching technique is safe and reproducible. It has demonstrated long-lasting results and high patient satisfaction. Our classification of patients will enable surgeons to better understand the problem presented and provide aesthetic and efficient results. Use of these guidelines and tailoring treatment options will further improve patient and physician satisfaction.

Level of Evidence IV
This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266
Assessment of the clinical and laboratory risk factors for thrombosis in neonates admitted to neonatal intensive care unit (two Egyptian tertiary centers experience)
Authors: Abdelsamei Ebtihal Mokhtar , Hakeem Gehan Lotfy Abdel , El Amin Nadia Mohamed , Yousef Maha Ahmed , Ghalioub Hager Samy , Mohamed Zamzam Hassan 
Published: October 2024

AbstractIn neonates admitted to the neonatal intensive care unit (NICU), arterial and venous thromboembolism is a major cause of morbidity and death which could be attributed to multiple risk factors exposure. This study aimed to evaluate the clinical characteristics, laboratory and radiological assessments, predisposing risk factors, and outcomes of thrombosis in neonates admitted to NICU. This prospective cohort study was conducted at NICU, Minia, and Alexandria University Children’s Hospital. Screening of 886 patients admitted to NICU over one year with different clinical presentations, patients were classified into the thrombotic and non-thrombotic groups based on the presence or absence of thrombosis. Thrombosis was diagnosed based on clinical, laboratory and different radiologic assessments. Genetic testing for factor V Leiden mutations G1691A, prothrombin mutation G20210A, protein C, protein S, and antithrombin III gene mutations were performed for patients with a family history of thrombosis. Out of a total of 886 neonatal admissions, 36 patients were diagnosed with evident thrombosis (40 per 1000 NICU admissions). The sites of venous thrombosis detection were Portal vein thrombosis in 11 patients (30.6%), superior vena cava thrombosis in 7 patients (19.4%), deep venous thrombosis in 5 patients (13.9%), central venous thrombosis in 5 patients (13.9%), intra-cardiac thrombosis in 3 patients (8.3%) and necrotic skin patches in one patient (2.8%). Only 69% of enrolled thrombosis patients showed genetic mutations the most common of which was factor V Leiden mutation (52.3%). Sepsis, central venous line (CVL) insertion, C reactive protein (CRP), and duration of NICU admission were significantly more common in the thrombotic group (p < 0.001) and were associated with a higher risk of thrombosis (ORs: 1.02, 7.7, and 1.11, respectively) (p < 0.001). Higher mortality occurred in thrombosis neonates compared with a non-thrombotic group (52.8% versus 17.4%) (p < 0.001). NICU-admitted neonates are exposed to multiple overlapped risk factors, the detection of which is important for preventing potential thrombosis and improving the patient’s outcomes. The complexity of sepsis pathogenesis and management could potentiate multiple acquired risk factors. inherited thrombophilia detection is required for prevention of further morbidities.
A general multi-scale description of metastable adaptive motion across fitness valleys
Authors: Esser Manuel , Kraut Anna 
Published: October 2024

AbstractWe consider a stochastic individual-based model of adaptive dynamics on a finite trait graph $$G=(V,E)$$

G
=
(
V
,
E
)

. The evolution is driven by a linear birth rate, a density dependent logistic death rate and the possibility of mutations along the directed edges in E. We study the limit of small mutation rates for a simultaneously diverging population size. Closing the gap between Bovier et al. (Ann Appl Probab 29(6):3541–358, 2019) and Coquille et al. (Electron J Probab 26:1–37, 2021) we give a precise description of transitions between evolutionary stable conditions (ESC), where multiple mutations are needed to cross a valley in the fitness landscape. The system shows a metastable behaviour on several divergent time scales, corresponding to the widths of these fitness valleys. We develop the framework of a meta graph that is constituted of ESCs and possible metastable transitions between them. This allows for a concise description of the multi-scale jump chain arising from concatenating several jumps. Finally, for each of the various time scales, we prove the convergence of the population process to a Markov jump process visiting only ESCs of sufficiently high stability.
Multimodal management of ectopic hepatic pregnancy: a systematic review of the literature
Authors: Beck Maximilian Heinz , Sehouli Jalid , Leppig Jonas Alexander , Knitter Sebastian , Pratschke Johann , Krenzien Felix 
Published: October 2024

Abstract
Purpose
Ectopic pregnancies with implantation in the upper abdomen are exceptionally rare. Here we provide a systematic review of hepatic ectopic pregnancies and the corresponding management strategies. Furthermore, this report details a case of ectopic hepatic pregnancy, successfully treated with primary methotrexate (MTX) followed by a two-staged robotic-assisted resection.

Methods
Two independent investigators performed a systematic review using the online search engine PubMed and MEDLINE database. The search utilized the following terms: ‘Hepatic Ectopic Pregnancy,’ ‘Hepatic Extrauterine Pregnancy,’ ‘Hepatic Abdominal Pregnancy,’ and ‘Ectopic Liver Pregnancy.’ Cross-referencing was employed to identify possible additional publications.

Findings
Forty-seven case reports on hepatic pregnancies were identified. Of these, 40 provided manuscripts in the English language. Most patients with hepatic pregnancy presented with mild to moderate abdominal pain, while only a minority exhibited signs of hemodynamically relevant intraperitoneal hemorrhage. Most cases were managed through open surgical removal, although in recent years, there has been an increase in laparoscopically managed cases. Conservative approaches using methotrexate are seldom employed.

Conclusion
Hepatic pregnancies present a rare and challenging clinical scenario. Until now, these cases have usually been treated primarily with open explorative surgery. As reported in this case, primary conservative treatment approaches with MTX before surgery hold promise as a strategy to reduce surgery-related bleeding and morbidity, particularly for asymptomatic or oligosymptomatic patients.
A system dynamics gamification tool to enhance supply chain resilience in times of disruptions
Authors: Arias-Vargas Marco , Sanchis Raquel , Poler Raúl 
Published: October 2024

AbstractIn recent years, significant disruptive events have stressed the global business environment and supply chains worldwide, and these events have become more disturbing and frequent. Consequently, organisations have been facing many troubles in different echelons of their supply chains, such as high inventory stockouts or unplanned supply and recovery costs, significantly affecting their performance and stability. Accordingly, strategists must acknowledge enterprise and supply chain resilience as a vital competence in organisational strategies and ploys to guide decision-makers when dealing with disruptive events. This work aims to help organisations develop a powerful approach for testing and improving a decision-making process to minimise stockouts, through a simulation game that considers essential supply chain components, such as suppliers, products, and disruptive events, coexisting in a dynamic system. Upon implementing the proposed game within an organisation, the main expected outcomes include: (i) enhanced decision-making capabilities; (ii) increased awareness and preparedness to address disruptive events; (iii) improved practical understanding of resilient supply chain management practices; (iv) cost-effective training and awareness-building; and (v) repetitive learning opportunities, thereby enhancing supply chain management and resilience. The game’s simplicity is crucial to ensure that this tool remains accessible and practical for its intended audience, as excessive complexity may potentially discourage its use.
Immunotherapy response and resistance in patients with advanced uveal melanoma: a retrospective cohort study
Authors: Maurer Alexander , Clerici Giulio , Schaab Jan A. , Cheng Phil F. , Mihic-Probst Daniela , Mader Cäcilia , Messerli Michael , Huellner Martin W. , Dummer Reinhard , Dimitriou Florentia 
Published: October 2024

AbstractMetastatic uveal melanoma (mUM) is associated with poor prognosis. Ipilimumab/nivolumab has shown antitumor efficacy in phase II studies. Tebentafusp resulted in longer overall survival (OS) compared to investigator`s choice in a phase III study. We sought to describe the radiological response patterns of mUM patients treated with immunotherapy. Patients with mUM treated with ipilimumab/nivolumab and tebentafusp between July 2018 and December 2022, with available radiological assessment per RECISTv1.1 and/or imPERCIST5, were retrospectively identified and included. Progression-free survival (PFS) and OS rates, liver-specific response and pathological assessment in available liver biopsies were evaluated. In the ipilimumab/nivolumab group, median PFS (mPFS) was 2.9 months (95% CI 2.2–28.6) and mOS 28.9 months (95% CI 12.7-NR). Complete (CMR) and partial (PMR) metabolic response per imPERCIST5, and partial response (PR) per RECISTv1.1 were associated with longer PFS and OS by trend, compared to morphologically and metabolically stable or progressive disease. In the tebentafusp group, mPFS was 2.7 months (95% CI 2.2–3) and mOS 18.6 months (95% CI 11.5-NR). PMR and PR were associated with longer PFS by trend. In both treatments, the overall treatment response was associated with the radiological response at the liver site. In available liver tumor biopsies, differences in pathological and radiological responses were noted. ImPERCIST5 and RECIST v1.1 are valuable tools in the radiological response assessment, but both methods display limitations. Accurate biomarkers to stratify patients at risk for disease progression and future translational studies to investigate mechanisms of response and resistance are required.
Experimental investigation and numerical simulation of swaging process of tubes for oil country tubular goods
Authors: Saberi Saeid , Reiter Christian , Winter Gerald , Klarner Jürgen , Stockinger Martin 
Published: October 2024

AbstractPremium integrated seamless pipes made from high strength low alloy steels are used to produce oil country tubular goods. Operational requirements of these pipes in petroleum industry lead to an adequate tube end connection with better mechanical strength and sealing properties. Therefore a cold swaging process or calibration of pipe end is necessary for the mechanical threading process of the tube. Applications of typical calibration mandrels result in heavy wear due to higher swaging loads and the optimal necessary geometry of end tube could not be achieved. In this study, a new mandrel geometry with a finished surface was developed to modify the pipe end profile and reduce the wear tool. The investigated pipe made from P110- pipe steel was plastically preformed using a cold swaging process. Experimental measurements of the pipe end geometry after swaging process resulted an increase of the inner tube diameter of approximately 4.9% and an outer tube diameter of 3.7% respectively. Furthermore, a rather constant tube wall thickness was also observed. An Abaqus plug-in was developed to characterize the swaging process of pipe ends. The influence of friction between tool and pipe surfaces on the final geometry of pipe ends and residual stresses in pipe ends due to preforming were numerically predicted. The new designed swaging process resulted a better final pipe end geometry and low tool wear during the preforming of pipe end. The presented plug-in in this work could be used for tool optimization and characterization of swaging process of pipes in oil and gas industries.
Migrants from a Different Shore: Earnings and Economic Assimilation of Immigrants from China in the United States
Authors: Lin Carl , Fang Tony , Hsu Mei 
Published: October 2024

AbstractUsing data from 1980, 1990, and 2000 U.S. censuses, as well as the 2010 and 2019 American Community Surveys and the 1993–2019 National Survey of College Graduates, we investigate the performance of Chinese immigrants in the U.S. labor market over the past 40 years since China initiated its economic reforms and open-door policy in 1978. The results indicate that by 1990, Chinese immigrants’ earnings surpassed those of immigrants from other countries, and by 2010, they exceeded the earnings of U.S.-born workers. Our Oaxaca-Blinder and Quantile decomposition analyses suggest that a significant portion of the earnings advantage held by Chinese immigrants, compared to other immigrant groups and U.S.-born workers over time, can be attributed to differences in observable characteristics, with education being the most crucial factor, both at the mean and across the earnings distribution. By employing national surveys that provide data on college graduates, we demonstrate that attaining the highest degree earned in the U.S. is associated with higher earnings for Chinese immigrants compared to all other immigrants. Furthermore, the difference in returns to U.S.-earned highest degrees can account for this earnings advantage. (JEL J31, J61, J24)
Remote delivered cognitive rehabilitation programs in Acquired Brain Injury: a systematic review of methods and outcomes
Authors: Câmara Joana , Geraldo Andreia , Vilar Manuela , Fermé Eduardo 
Published: October 2024

AbstractRemote delivered cognitive rehabilitation programs (r-CRP) are increasingly recognized as alternative and complementary intervention approaches to traditional cognitive rehabilitation (CR) in the context of several neurological conditions, including acquired brain injuries (ABI). This systematic review examines the methodological characteristics of currently available r-CRP for ABI patients and investigates their impact on cognitive and noncognitive outcomes. A systematic search was performed on EBSCOhost, PubMed, and Web of Science, complemented by a manual search. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses and the Cochrane Collaboration Guidelines were followed. Out of 1624 studies, a total of 19 studies were included. The results demonstrate that most r-CRP were administered to middle-aged community-dwelling chronic stroke survivors and that there was no consensus regarding assessment and intervention protocols. Moreover, most r-CRP were delivered through information and communication technologies (ICTs), primarily relying on cognitive training (CT) interventions addressing multiple cognitive domains (e.g., attention, memory). These ICT-based CT programs included tasks with low ecological validity, i.e., tasks with limited real-world application (e.g., cancelation tasks with artificial stimuli), and were asynchronous, meaning that participants performed the sessions at their own pace, without real-time monitoring from a therapist. In terms of the impact of r-CRP, class I studies reported mixed and inconsistent results regarding the effect of this mode of delivery on cognitive and noncognitive outcomes of ABI patients while supporting its high feasibility and acceptability among patients. Specific recommendations for future research are provided to improve the methodological quality of clinical studies and establish the evidence base for r-CRP.
A paedomorphic dwarf species, Gauthieria pumilio sp. nov. (Echinoidea: Phymosomatidae), from the Campanian (Late Cretaceous) of Hannover, Germany
Authors: Schlüter Nils 
Published: October 2024

AbstractA new phymosomatoid species, Gauthieria pumilio sp. nov., from lower Campanian (Late Cretaceous) deposits in the vicinity of Hannover, Germany, is described. This species is very close in its overall appearance (i.e. tuberculation and ambulacral plating pattern) to a few other species: Gauthieria radiata and the juvenile stages of the Santonian Gauthieria spatulifera and the Maastrichtian Gauthieria princeps, with which Gauthieria pumilio sp. nov. is accordingly closely related. However, it deviates from its relatives by a significantly smaller test diameter. Accordingly it is deviating from the general increase in size during the evolutionary lineage leading from the Turonian G. radiata via G. spatulifera to the Maastrichtian G. princeps. This lineage exemplified Cope's Rule through increasing test size. However, G. pumilio sp. nov. challenges this pattern with its dwarfing phenomenon, exhibiting a test diameter < 18 mm. It shares the ambulacral plating pattern with G. radiata and the juvenile stages of G. spatulifera and G. princeps, providing further insights into the genus's evolutionary history.
A Linguist’s Take on Blanc’s Proposition of Gestalt Language Processing and Natural Language Acquisition: An Implausible Theory at Odds with the Research
Authors: Beals Katharine 
Published: October 2024

Abstract
Purpose of the review
This review critiques Blanc’s Gestalt Language Processing (GLP) and Natural Language Acquisition (GLP/NLA), and related suggestions for clinical practice, from a linguistics angle.

Recent findings
This review extends a recent critique of GLP/NLA and brings to bear recent research on language acquisition in the general population and in autistic individuals. It also draws upon recent research on effective language teaching methods for minimally speaking autistic individuals, as well as the author’s own synthesis of evidence-based, autism-friendly instruction.

Summary
In light both of recent research and of earlier findings in the fields of autism and linguistics that are yet unconsidered in the context of GLP, I argue that those whom GLP/NLA proponents claim are “gestalt language processors” or “GLPs” necessarily engage in analytic, as opposed to gestalt, processes. I then explain why (a) the purported linguistic units in GLP—gestalts, defined as language that is echoed as analyzed stretches of speech sounds—are not plausible either as building blocks in language acquisition, or as full-fledged linguistic phenomena; and (b) that language acquisition, for all learners, is necessarily analytic, beginning in the earliest stages. Finally, I argue that some of the GLP/NLA suggestions for working with individuals proponents classify as “gestalt language processors” (also referred to reductively as “GLPs”) are detrimental to the autistic language learners that GLP/NLA proponents purport to be helping.