bluuebunny/crossref_metadata_2025_split huggingface dataset:
Highly Efficient Perovskite Solar Cells with Light Management of Surface Antireflection
Authors: Liang Ying , Jiao Chuanjia , Zhou Peng , Li Wangnan , Zang Yue , Liu Yiming , Yang Gaoyuan , Liu Liu , Cheng Jiahao , Liang Guijie , Wang Jingyang , Zhong Zhicheng , Yan Wensheng 
Published: January 2023

Abstract
Perovskite solar cells (PSCs) captivate tremendous interest thanks to high-efficiency and low-cost. Nevertheless, the planar PSCs are negatively affected by serious reflection loss usually because of the refractive index mismatch between the glass substrate and the air, which limits their light harvesting performance. Here, we report an investigation for highly efficient PSCs with light management by applying a structural antireflective film made of polydimethylsiloxane (PDMS) pyramidal texture. Machine learning is firstly used to predict planar (FAPbI3)0.95(MAPbBr2.2Cl0.8)0.05 PSC’ performance for an experimental guide. The experimental results show excellent agreement between the two. When the antireflective film is utilized in the present planar PSCs, an impressive light absorption enhancement is achieved, resulting in a significantly increased power conversion efficiency of up to 23.5%.
The Impact of Bundled Payment on Hospital Operations
Authors: Fan Yiming , Wang Jingqi , Xie Jingui , Yu Yugang , Cao Liqing 
Published: January 2023

This paper studies the impact of bundled payment policy on healthcare cost, efficiency, quality, and shift of care. Using insurance claim data, we empirically offer a more nuanced understanding of the impact of bundled payment policy on hospital operations and provide new evidence from China. Our evidence suggests that transitioning from fee-for-service to bundled payment reimbursement resulted in declines in treatment costs and length of stay. Along with that decline, there was an increase in planned revisits to outpatient clinics, which indicates a shift of care from the inpatient to the outpatient setting, as well as a rise in unplanned revisits, indicating a decline in service quality. The increase in readmission rate to inpatient wards is very small and not statistically significant. In addition, we discuss the design and implementation of bundled payment. Our results imply that careful bundle design is vital to encouraging providers to implement the new program without sacrificing quality. Funding: This research is supported by the National Natural Science Foundation of China [Grants 72091215/72091210, 71921001], the Research Grants Council of the Hong Kong Special Administrative Region, China [Grant HKU 17500217], and the Fundamental Research Funds for the Central Universities [Grant 2040000018].
Generation of human immortalized chondrocytes from osteoarthritic and healthy cartilage
Authors: Piñeiro-Ramil María , Sanjurjo-Rodríguez Clara , Rodríguez-Fernández Silvia , Hermida-Gómez Tamara , Blanco-García Francisco J. , Fuentes-Boquete Isaac , Vaamonde-García Carlos , Díaz-Prado Silvia 
Published: January 2023

AimsAfter a few passages of in vitro culture, primary human articular chondrocytes undergo senescence and loss of their phenotype. Most of the available chondrocyte cell lines have been obtained from cartilage tissues different from diarthrodial joints, and their utility for osteoarthritis (OA) research is reduced. Thus, the goal of this research was the development of immortalized chondrocyte cell lines proceeded from the articular cartilage of patients with and without OA.MethodsUsing telomerase reverse transcriptase (hTERT) and SV40 large T antigen (SV40LT), we transduced primary OA articular chondrocytes. Proliferative capacity, degree of senescence, and chondrocyte surface antigen expression in transduced chondrocytes were evaluated. In addition, the capacity of transduced chondrocytes to synthesize a tissue similar to cartilage and to respond to interleukin (IL)-1β was assessed.ResultsCoexpression of both transgenes (SV40 and hTERT) were observed in the nuclei of transduced chondrocytes. Generated chondrocyte cell lines showed a high proliferation capacity and less than 2% of senescent cells. These cell lines were able to form 3D aggregates analogous to those generated by primary articular chondrocytes, but were unsuccessful in synthesizing cartilage-like tissue when seeded on type I collagen sponges. However, generated chondrocyte cell lines maintained the potential to respond to IL-1β stimulation.ConclusionThrough SV40LT and hTERT transduction, we successfully immortalized chondrocytes. These immortalized chondrocytes were able to overcome senescence in vitro, but were incapable of synthesizing cartilage-like tissue under the experimental conditions. Nonetheless, these chondrocyte cell lines could be advantageous for OA investigation since, similarly to primary articular chondrocytes, they showed capacity to upregulate inflammatory mediators in response to the IL-1β cytokine. Cite this article: Bone Joint Res 2023;12(1):46–57.
Coal Tar Distillate (Creosote)—The First and Still Great Choice to Preserve Utility Poles
Authors: Smith Stephen T. 
Published: January 2023

Abstract
Creosote, a coal tar distillate product, has been used to preserve wooden utility poles for well over 100 years. Such use began in the late 1800s and continues to this day. Creosote’s efficacy in protecting wood from decay, termite attach, and general weathering has been demonstrated by actual performance of poles in utility service and in documented field and laboratory testing. The American Wood Protection Association has standardized and long recognized the efficacy of creosote preservation. With production of pentachlorophenol ending after 2022, preservation may easily convert to creosote preservative. Creosote preservative also is an environmentally sound choice in that used poles can be used as fuel and otherwise, creosote degrades biologically. Wood is sustainable as new trees are grown to replace poles while the poles are sequestered carbon. Utility service life of creosote preserved wooden poles typically lasts for 70 to over 100 years with inspection and maintenance. Utilities can expect new creosote preserved poles to last into the next century.
Pointing-error correction of optical communication terminals on motion platforms using a parameter model and kernel weight function estimation
Authors: Peng Chao , He Dong , Wang Yuankang , Wang Zihao , Huang Yongmei , Zhang Tong , Liu Xiang , Wang Qiang , Ma Haotong 
Published: January 2023

Optical communication terminals (OCTs) with high pointing accuracy on motion platforms are highly important for establishing a global communication network. The pointing accuracy of such OCTs is seriously affected by linear and nonlinear errors generated by various sources. A method based on a parameter model and kernel weight function estimation (KWFE) is proposed to correct the pointing errors of an OCT on a motion platform. Initially, a parameter model, which has a physical meaning, is established to reduce the linear pointing errors. Then, the nonlinear pointing errors are corrected using the proposed KWFE method. Tracking star experiments are conducted to verify the efficiency of the proposed method. The parameter model reduces the initial pointing error associated with the stars used for calibration from 1311.5 µrad to 87.0 µrad. After applying parameter model correction, the KWFE method is applied to further reduce the modified pointing error associated with the stars used for calibration from 87.0 µrad to 70.5 µrad. Additionally, based on the parameter model, the KWFE method reduces the actual open-loop pointing error associated with the target stars from 93.7 µrad to 73.3 µrad. The sequential correction using the parameter model and KWFE can gradually and effectively improve the pointing accuracy of an OCT on a motion platform.
Self-Q-switched Er:Lu2O3 laser at 2.74  µm
Authors: Zhang Meng , Yin Yanru , Zhang Lu , Zhang Baitao , Yang Kejian , He Jingliang , Li Tao 
Published: January 2023

A diode-pumped self-Q-switched 2.74 µm Er:Lu2O3 crystal solid-state laser has been experimentally and theoretically studied. Without any additional modulation elements, stable self-Q-switched pulses with a pulse width of 145.3 ns, a repetition rate of 227.8 kHz, and an average output power of 877 mW were generated. Considering the excited-state absorption on the laser photons of the Er:Lu2O3 crystal, we have simulated the dynamic process of self-pulsed generation by solving the rate equations numerically. The simulation results are consistent with the typical characteristics of a Q-switched laser.
Calibration method of line-structured light sensors based on a hinge-connected target with arbitrary pinch angles
Authors: Zhu Zhenmin , Liu Haoran , Zhang Jing , Zhou Yumeng 
Published: January 2023

Line-structured light 3D measurement is often used for 3D contour reconstruction of objects in complex industrial environments, where light plane calibration is a key step. In this paper, we propose a calibration method for a line-structured optical system based on a hinge-connected double-checkerboards stereo target. First, the target is moved randomly in multiple positions at any angle within the camera measurement space. Then, by acquiring any one image of the target with line-structured light, the 3D coordinates of the light stripes feature points are solved with the help of the external parameter matrix of the target plane and the camera coordinate system. Finally, the coordinate point cloud is denoised and used to quadratically fit the light plane. Compared with the traditional line-structured measurement system, the proposed method can acquire two calibration images at once; thus, only one image of line-structured light is needed to complete the light plane calibration. There is no strict requirement for the target pinch angle and placement, which improve system calibration speed with high accuracy. The experimental results show that the maximum RMS error of this method is 0.075 mm, and the operation is simpler and more effective to meet the technical requirements of industrial 3D measurement.
Disclosure of HIV status to sexual partner and its associated factors among pregnant women living with HIV attending prenatal care in Amhara Regional state Referral Hospitals, Ethiopia
Authors: Tibebu Nebiyu Solomon , Rade Bayew Kelkay , Kebede Azmeraw Ambachew , Kassie Belayneh Ayanaw 
Published: January 2023

Background
Disclosure of Human Immunodeficiency Virus (HIV) status to sexual partners plays a significant role in the successful prevention and care of HIV infection. Pregnant women who did not reveal their HIV status to their sexual partners make the prevention and control efforts challenging. Therefore, this study was aimed to assess HIV status disclosure to sexual partners and associated factors among pregnant women living with HIV attending prenatal care in Amhara Regional state referral Hospitals, Ethiopia in 2021.

Methods
An institution-based cross-sectional study was conducted from October 17th, 2020 to March 1st, 2021. A total of 423 pregnant women living with HIV were participated in this study. A systematic random sampling technique was used to select all eligible women. Data was collected using a semi-structured, pretested, and interviewer-administered questionnaire. EPI INFO version 7 and SPSS version 21 were used for data entry and analysis, respectively. Both univariable and multivariable logistic regression analyses were performed to find factors associated with women’s disclosure status to a sexual partner. Statistical association was decided based on the adjusted odds ratio (AOR) with its 95% Confidence Interval (CI) and p-value of ≤ 0.05.

Results
The prevalence of disclosure of their HIV status to their sexual partners was 73% (95% CI: 68.9%, 77.3%). Being an urban resident (AOR = 5.04, 95% CI: 2.14, 11.81), diagnosed HIV before pregnancy (AOR = 7.77, 95% CI: 3.09, 19.52), disclosing their HIV status to others (AOR = 7.01, 95% CI: 3.78, 13.25), planned pregnancy (AOR = 2.46, 95% CI: 1.32, 4.57), and having good knowledge on HIV/AIDS prevention (AOR = 2.19, 95% CI:1.22, 3.94) were found to be statistically significant with women’s disclosure of their HIV status to their sexual partner.

Conclusion
In this study, nearly three-fourth of pregnant women disclosed their HIV status to their sexual partner. Thus, setting strategies in preventing unplanned pregnancy, HIV diagnosed before pregnancy, and increasing knowledge of HIV prevention will have significant role in escalating women’s disclosure status.
Ureteral calculi in octogenarians and nonagenarians: Contemporary in-hospital management—A joint study by the endourological section of the Austrian Association of Urology
Authors: Drerup Martin , Özsoy Mehmet , Wehrberger Clemens , Lenz Matthias , Ramesmayer Christian , Stolzlechner Philipp , Zanier Johannes , Falkensammer C. E. , Handjev Ivan , Wasserscheid Andreas , Seklehner Stephan 
Published: January 2023

Aim
To assess contemporary in-hospital management of octogenarians and nonagenarians with ureteral calculi.

Materials and methods
Review of patients aged ≥80 years hospitalized due to ureteral calculi. Data was extracted from eight Austrian centers of urology. Stone and patient related data were recorded. Treatment patterns in acute and elective settings were assessed.

Results
A total of 759 patients hospitalized with ureteral calculi were analyzed. Out of them, 643 were octogenarians (80-89years) and 116 nonagenarians (90–99 years). In an acute setting, simple de-obstruction with urinary diversions outnumbered active stone treatments like URS and SWL (62.6% vs. 26.9% vs. 10.5%). Decision making whether patients underwent active stone treatment was driven by stone location (OR = 0.28, p<0.0001), impaired renal function (OR = 0.28, p = 0.01) and indwelling urethral catheters (OR = 0.23, p = 0.01) but not by age or extend of mobility (all p>0.05). In elective settings, 81.5% of procedures were active stone treatments–mainly URS (76.9%), while DJ stent or nephrostomy replacements were noted in 14.2% and 4.3%. Octogenarians (OR = 14, p<0.0001) and patients capable of walking (OR = 4.51, p = 0.01) had significantly higher odds of receiving active stone. Stone free rates and complications rates with URS were similar between octogenarians and nonagenarians (p = 0.98 and p = 0.58).

Conclusion
In acute settings, age and extend of mobility were not found to be independent predictors for active stone treatment. In elective settings, after having received urinary diversions, reduced mobility and nonagenarians were less likely to undergo stone removal treatments. Safety and efficacy of URS seems to be similar in octogenarians and nonagenarians.
A study protocol for the validation of a prognostic model with an emphasis on modifiable factors to predict chronic pain after a new episode of acute- or subacute nonspecific idiopathic, non-traumatic neck pain presenting in primary care
Authors: Verwoerd Martine J. , Wittink Harriet , Maissan Francois , van Kuijk Sander M. J. , Smeets Rob J. E. M. 
Published: January 2023

Background
The primary objective of this study is to identify which modifiable and non-modifiable factors are independent predictors of the development of chronic pain in patients with acute- or subacute nonspecific idiopathic, non-traumatic neck pain, and secondly, to combine these to develop and internally validate a prognostic prediction model.

Methods
A prospective cohort study will be conducted by physiotherapists in 30 primary physiotherapy practices between January 26, 2020, and August 31, 2022, with a 6-month follow-up until March 17, 2023. Patients who consult a physiotherapist with a new episode of acute- (0 to 3 weeks) or subacute neck pain (4 to 12 weeks) will complete a baseline questionnaire. After their first appointment, candidate prognostic variables will be collected from participants regarding their neck pain symptoms, prior conditions, work-related factors, general factors, psychological and behavioral factors. Follow-up assessments will be conducted at six weeks, three months, and six months after the initial assessment. The primary outcome measure is the Numeric Pain Rating Scale (NPRS) to examine the presence of chronic pain. If the pain is present at six weeks, three months, and six months with a score of NPRS ≥3, it is classified as chronic pain. An initial exploratory analysis will use univariate logistic regression to assess the relationship between candidate prognostic factors at baseline and outcome. Multiple logistic regression analyses will be conducted. The discriminative ability of the prognostic model will be determined based on the Area Under the receiver operating characteristic Curve (AUC), calibration will be assessed using a calibration plot and formally tested using the Hosmer and Lemeshow goodness-of-fit test, and model fit will be quantified as Nagelkerke’s R2. Internal validation will be performed using bootstrapping-resampling to yield a measure of overfitting and the optimism-corrected AUC.

Discussion
The results of this study will improve the understanding of prognostic and potential protective factors, which will help clinicians guide their clinical decision making, develop an individualized treatment approach, and predict chronic neck pain more accurately.
Incidence and predictors of loss to follow-up among women on option B+ PMTCT program in northwest Ethiopia. A retrospective follow-up study
Authors: Geremew Habtamu , Wolde Awraris , Kassa Getachew Mullu 
Published: January 2023

Background
Loss to follow-up from lifelong antiretroviral therapy continued to be a major challenge affecting virtual elimination of mother-to-child transmission of human immunodeficiency virus, especially in Sub-Saharan Africa. Although there was a study conducted in Ethiopia, loss to follow-up was not clearly defined and some important variables were not addressed. Thus, this study was conducted to determine the incidence of loss to follow-up and its predictors among women on option B+ lifelong antiretroviral therapy program in Pawi district health facilities, northwest Ethiopia.

Methods
An institutional-based retrospective follow-up study was conducted among 365 women who were enrolled for option B+ prevention of mother-to-child transmission service between June 2013 and March 2021 in Pawi district health facilities. A standard pretested checklist was used to extract data from all eligible women’s records. The Kaplan–Meier survival curve for estimating survival probability and Cox proportional hazards model to identify independent predictors of loss to follow-up were employed after checking for proportional hazards assumptions using STATA-14 statistical software.

Result
The overall incidence of loss to follow-up was 12.04 (95% CI: 9.50, 15.20) per 1000 person-months of observation time. Residing outside the catchment area (adjusted hazard ratio (AHR): 3.08, 95% CI: 1.59, 5.98), lactating at enrollment (AHR: 2.43, 95% CI: 1.24, 4.77), living in a sero-discordant relationship (AHR: 2.5, 95% CI: 1.13, 5.53), lack of sero-status disclosure (AHR: 2.59, 95% CI: 1.15, 5.85), new enrollment to lifelong antiretroviral therapy (AHR: 2.07, 95% CI: 1.05, 4.11), and fair (AHR: 2.69, 95% CI: 1.2, 6.04) or poor (AHR: 5.78, 95% CI: 2.76, 12.12) antiretroviral drug adherence level were independent predictors of loss to follow-up.

Conclusion
We found a higher incidence of loss to follow-up relative to previous studies in Ethiopia. Thus, strengthening adherence support interventions, and effective counseling on sero-status disclosure and male partner involvement are important to retain women in care.
How do we use leadership to keep our nurses?
Authors: Goens Becky 
Published: January 2023

Title: How do we use leadership to keep our nurses?
Introduction: We are currently experiencing a healthcare crisis of understaffed environments that impede evidence-based patient care.
Background: The nursing profession is facing some of the highest turnover and shortage rates in healthcare as registered nurses plan to leave their positions more than any other healthcare professional. Although retention is a multifaceted issue evidence has shown leadership to have positive influences.
Results: Transformational leadership encourages an environment in which registered nurses intend to stay in their positions and are less likely to leave.
Conclusion: Nursing managers and members of leadership need to examine their leadership capabilities introspectively to assess factors pertaining to the dissemination of their leadership which could encourage nurses to leave their positions or the profession.
Estimating and minimizing the eddy current loss in a permanent magnetic fault current limiter
Authors: Das Subhamoy , Santra Tapan , Choudhury Amalendu Bikash , Roy Debabrata , Yamada Sotoshi 
Published: January 2023

AbstractThis research paper represents the estimation and reduction of eddy current loss in a Magnetic Fault Current Limiter (MFCL). The nonlinear model of the device is established using electromagnetic coupled circuit supported by Finite Element Model. The current limiting performance of the MFCL is investigated by simulation study as well as laboratory testing. It is further observed that a significant amount of eddy current loss takes place inside the core and permanent magnet of the device. Different methods (shorting ring, lamination of permanent magnet and variation of magnet length) are proposed to reduce the eddy current. The advantages and disadvantages of these methods are discussed. Some design modifications are also proposed to minimize the temperature rise caused by the eddy current.
Kelly criterion and fractional Kelly strategy for non-mutually exclusive bets
Authors: Jacot Benjamin P. , Mochkovitch Paul V. 
Published: January 2023

Abstract
This paper examines how the Kelly criterion, a strategy for maximizing the expected log-growth of capital through informed betting, can be applied to non-mutually exclusive bets. These are bets where there is no one-to-one correspondence between the bets and the possible outcomes of the game. This type of situation is common in horse racing, where multiple types of bets are available for a single race. The paper begins by providing a theoretical overview of the Kelly betting strategy and then discusses how it can be extended to non-mutually exclusive bets. A new formulation of the fractional Kelly strategy, which involves betting a fixed fraction of the amount suggested by the Kelly criterion, is also presented for this type of scenario.
On a locally compact monoid of cofinite partial isometries of ℕ with adjoined zero
Authors: Gutik Oleg , Khylynskyi Pavlo 
Published: January 2023

Abstract
Let 𝒞ℕ be a monoid which is generated by the partial shift α : n↦n +1 of the set of positive integers ℕ and its inverse partial shift β : n + 1 ↦n. In this paper we prove that if S is a submonoid of the monoid Iℕ∞ of all partial cofinite isometries of positive integers which contains Cscr;ℕ as a submonoid then every Hausdorff locally compact shift-continuous topology on S with adjoined zero is either compact or discrete. Also we show that the similar statement holds for a locally compact semitopological semigroup S with an adjoined compact ideal.