bluuebunny/crossref_metadata_2025_split huggingface dataset:
A protocol for the development of PhyCaRe: An extension of the CARE guideline for physiotherapy using the Delphi method
Authors: Naqvi Waqar M. , Mishra Gaurav , Pashine Aishwarya A. , Arora Sakshi P. , Gupta Sonia , Goyal Chanan , Varma Ashish R. , Quazi Zahiruddin , Muthukrishnan Ramprasad , Kumar Kandakurti Praveen , Umate Laxmikant 
Published: July 2023

Background: Case reports are one of the important forms of documentation and publication of clinical physiotherapy presenting the first line of evidence in scientific literature. In order to provide a systematic and precise structure for reporting and presenting cases, the CARE guidelines were established in 2013. However, these guidelines present limitations as while reporting require items of specific specialties following the checklist. Authors from different specialities have developed CARE extensions specifying the characteristic features of corresponding fields, however, an extension dealing with physiotherapy assessment and line of management in the CARE guidelines is proposed as PhyCaRe. Method: After consulting with the advisors, a draft will be prepared of the specific elements that should be included in the PhyCaRe using Delphi methodology considering CARE statement as the source and SurveyMonkey will be used to undertake the Delphi questionnaire. The Delphi methodology will be assumed for three rounds and will be open to physiotherapists and others with substantial experience in reviewing case reports. Subsequently, an online consensus meeting, pilot testing, and submission of the CARE extension for physiotherapy will be conducted for publication. Dissemination: The 2010 "Guidance for Developers of Health Research Reporting" and instructions from the EQUATOR Network will be followed in the preparation of PhyCaRe guidelines. The guidelines will be propagated at different platforms and journals will be requested to adopt the guidelines. Registration: The reporting guideline under development is prospectively registered on the EQUATOR Network website on PhyCaRe – Reporting guideline for physiotherapy case reports.
Should Mama or Papa Work? Variations in Attitudes towards Parental Employment by Country of Origin and Child Age
Authors: Gambaro Ludovica , Spiess C. Katharina , Wrohlich Katharina , Ziege Elena 
Published: July 2023

Employment among mothers has been rising in recent decades, although mothers of young children often work fewer hours than other women do. Parallel to this trend, approval of maternal employment has increased, albeit not evenly across groups. However, differences in attitudes remain unexplored despite their importance for better understanding mothers’ labour market behaviour. Meanwhile, the employment of fathers has remained stable and attitudes towards paternal employment do not differ as much as attitudes towards maternal employment do between socio-economic groups.
This paper examines attitudes towards maternal and paternal employment. It focuses on Germany, drawing on data from the German Family Demography Panel Study (FReDA). The survey explicitly asks whether mothers and fathers should be in paid work, work part-time or full-time, presenting respondents with fictional family profiles that vary the youngest child’s age. Unlike previous studies, the analysis compares the views of respondents with different origins: West Germany, East Germany, immigrants from different world regions, and second-generation migrants in West Germany.
The results highlight remarkable differences between respondents from West and East Germany, with the former group displaying strong approval for part-time employment among mothers and fathers of very young children and the latter group reporting higher approval for full-time employment. Immigrant groups are far from homogenous, holding different attitudes depending on their region of origin. Taken together, the results offer a nuanced picture of attitudes towards maternal and paternal employment. We discuss these findings in relation to labour markets participation in Germany.
* This article belongs to a special issue on “Family Research and Demographic Analysis – New Insights from the German Family Demography Panel Study (FReDA)”.
Existence of saddle-type solutions for a class of quasilinear problems in R^2
Authors: Alves Claudianor O. , Isneri Renan J. S. , Montecchiari Piero 
Published: July 2023

The main goal of the present paper is to prove the existence of saddle-type solutions for the following class of quasilinear problems
$$
-\Delta_{\Phi}u + V'(u)=0\quad \text{in }\mathbb{R}^2,
$$%
where
$$
\Delta_{\Phi}u=\text{div}(\phi(|\nabla u|)\nabla u),
$$%
$\Phi\colon \mathbb{R}\rightarrow [0,+\infty)$ is an N-function
and the potential $V$ satisfies some technical condition and we have
as an example $	V(t)=\Phi(|t^2-1|)$.
Multi-purchase Behavior: Modeling, Estimation, and Optimization
Authors: Tulabandhula Theja , Sinha Deeksha , Karra Saketh Reddy , Patidar Prasoon 
Published: July 2023

Problem definition: We study the problem of modeling purchase of multiple products and using it to display optimized recommendations for online retailers and e-commerce platforms. Rich modeling of users and fast computation of optimal products to display given these models can lead to significantly higher revenues and simultaneously enhance the user experience. Methodology/results: We present a parsimonious multi-purchase family of choice models called the BundleMVL-K family and develop a binary search based iterative strategy that efficiently computes optimized recommendations for this model. We establish the hardness of computing optimal recommendation sets and derive several structural properties of the optimal solution that aid in speeding up computation. This is one of the first attempts at operationalizing multi-purchase class of choice models. We show one of the first quantitative links between modeling multiple purchase behavior and revenue gains. The efficacy of our modeling and optimization techniques compared with competing solutions is shown using several real-world data sets on multiple metrics such as model fitness, expected revenue gains, and run-time reductions. For example, the expected revenue benefit of taking multiple purchases into account is observed to be [Formula: see text] in relative terms for the Ta Feng and UCI shopping data sets compared with the multinomial choice model for instances with ∼1,500 products. Additionally, across six real-world data sets, the test log-likelihood fits of our models are on average 17% better in relative terms. Managerial implications: Our work contributes to the study of multi-purchase decisions, analyzing consumer demand, and the retailers optimization problem. The simplicity of our models and the iterative nature of our optimization technique allows practitioners meet stringent computational constraints while increasing their revenues in practical recommendation applications at scale, especially in e-commerce platforms and other marketplaces. Supplemental Material: The online appendices are available at https://doi.org/10.1287/msom.2020.0238 .
Inventory Sharing Under Service Competition
Authors: Guo Xiaomeng , Jiang Baojun 
Published: July 2023

Problem description: In many markets with demand uncertainties, competing retailers may share inventories for common products that they offer consumers. This paper examines how competitors’ product sharing affects their inventory and service-quality decisions. The existing literature has mainly focused on inventory sharing among independent retailers who do not compete with each other. Our research aims to fill the gap in this literature by investigating the tradeoffs of inventory sharing between retailers who directly compete for customers based on service quality. Methodology/results: We develop a game-theoretical model in which two retailers selling a common product from the same manufacturer compete for customers by offering differentiated services together with the product. Each retailer faces stochastic demand that increases in its service quality and decreases in the competitor’s service quality. When a retailer runs out of stock of the product, it may replenish its inventory directly from the manufacturer and/or request the competitor’s excess inventory if they have an inventory-sharing agreement. We find that inventory sharing may soften or intensify service competition, depending on the transfer price for the shared inventory. Specifically, when retailers agree to share inventory, their service levels decrease in the transfer price if their preseason inventory levels are exogenous, but are nonmonotone in the transfer price if the retailers endogenously choose inventory levels. Moreover, our analysis reveals that the retailers’ equilibrium inventory levels will increase in the transfer price and can be higher or lower than their levels in the case without inventory sharing. We also find that with exogenous inventory, the retailers prefer to share inventory at the highest nonmoot transfer price, whereas with endogenous inventory, the retailers may prefer not to share inventory, even at the optimal transfer price, when the level of competition and the preorder cost are high. Finally, we show that with service competition, inventory sharing cannot achieve full coordination under any transfer price. Managerial implications: When deciding whether to share inventory with competitors, managers should consider not only the benefits of inventory pooling, but also the strategic effect of sharing on the firms’ inventory choices and service levels. Funding: X. Guo has received research support from the Research Grants Council of Hong Kong [RGC Reference No. 15501820]. Supplemental Material: The online appendix is available at https://doi.org/10.1287/msom.2020.0584 .
Principios y valores para una ética digital
Authors: Balladares Burgos Jorge Antonio 
Published: July 2023

La ética digital, como una ética aplicada, brinda respuestas a los desafíos en el uso de las TIC, la navegación en el internet y la interacción en las redes sociales. El propósito del presente artículo es el indagar los principios y valores que sustenten una ética digital. A partir de una revisión bibliográfica en torno a los principios de la inteligencia artificial y del pacto digital, se abordan los diferentes valores a partir de su identificación en generaciones digitales. De esta manera, los principios y valores se constituyen en referentes éticos para una interacción en las redes sociales para una vivencia y convivencia en el internet, y para la búsqueda de nuevos retos y desafíos universales. La interacción de las redes sociales, sus tendencias y sensibilidades, y las formas de convivencia en el mundo digital son objeto de estudio para comprender las generaciones digitales. Además, se busca identificar los principios y valores éticos que caracterizan a estas generaciones más recientes con el surgimiento de nuevas tecnologías, lo que delimita un horizonte de referentes para una ética digital.
Optical micro mechanical accelerometer with double grating: design and simulation
Authors: Zhang Yu , Ma Honghao 
Published: July 2023

A double-grating-based optical micro mechanical accelerometer with differential detection structure is reported in order to enhance the optical scale factor. A theoretical model is established based on the multi-slits Fraunhofer diffraction model. According to the calculation and analysis, the normalized optical scale factor is improved from 5.491E6 with the single-side detection structure to 10.98E6 with the differential detection structure. Mechanical sensitivity with 4.04 nm/g and natural frequency with 7756.8 Hz of the optical accelerometer are shown by finite element simulation. The results of simulations show a novel scheme for an optical micro mechanical accelerometer with high resolution, to the best of our knowledge. Furthermore, micro-opto-electro-mechanical system fabrication flow is given in this work, which provides a reference for other kinds of optical sensors.
Tri-comb generation with a dual-ring structure
Authors: Zhu En , Zhu Mingwen , Jiang Tianwei , Li Zhixue , Ding Shangsu , Shang Jianming , Ma Jianxin , Yu Song , Luo Bin 
Published: July 2023

By introducing a third measurement comb with different repetition frequencies (Δfrep), the tri-comb spectroscopy technique overcomes the ambiguity problem of the original dual-comb spectroscopy technique and eliminates physical delay stages in multidimensional coherent spectroscopy. Nowadays, tri-comb generation based on three frequency-stabilized comb lasers is overly complicated and costly for many potential applications. Previous research on single-cavity dual-combs inspired research on single-cavity tri-combs. However, the currently reported tri-comb structures cannot achieve independently controllable pulses. This paper shows a dual-ring tri-comb seed-source structure using wavelength-based multiplexing in one of the rings. The wavelength and power of the output pulse are independently controlled by using the dual-ring structure. The Δfrep of wavelength multiplexing-based dual-comb output can be tuned by adjusting the intra-ring polarization controller (PC). In the case of single-wavelength mode-locking, the PC can be adjusted to achieve a wavelength tuning range of nearly 20 nm. The tri-comb source could offer an attractive alternative solution as a low-complexity light source for field-deployable multi-comb metrology applications.
Magnetically tunable zero-index metamaterials
Authors: Yang Yucong , Liu Yueyang , Qin Jun , Cai Songgang , Su Jiejun , Zhou Peiheng , Deng Longjiang , Li Yang , Bi Lei 
Published: July 2023

Zero-index metamaterials (ZIMs) feature a uniform electromagnetic mode over a large area in arbitrary shapes, enabling many applications including high-transmission supercouplers with arbitrary shapes, direction-independent phase matching for nonlinear optics, and collective emission of many quantum emitters. However, most ZIMs reported to date are passive; active ZIMs that allow for dynamic modulation of their electromagnetic properties have rarely been reported. Here, we design and fabricate a magnetically tunable ZIM consisting of yttrium iron garnet (YIG) pillars sandwiched between two copper clad laminates in the microwave regime. By harnessing the Cotton–Mouton effect of YIG, the metamaterial was successfully toggled between gapless and bandgap states, leading to a “phase transition” between a zero-index phase and a single negative phase of the metamaterial. Using an S-shaped ZIM supercoupler, we experimentally demonstrated a tunable supercoupling state with a low intrinsic loss of 0.95 dB and a high extinction ratio of up to 30.63 dB at 9 GHz. We have also engineered a transition between the supercoupling state and the topological one-way transmission state at 10.6 GHz. Our work enables dynamic modulation of the electromagnetic characteristics of ZIMs, enabling various applications in tunable linear, nonlinear, quantum, and nonreciprocal electromagnetic devices.
A longitudinal investigation of the effects of the COVID-19 pandemic on 2SLGBTQ+ youth experiencing homelessness
Authors: Abramovich Alex , Pang Nelson , Kim Kawon Victoria , Stark Rowen K. , Lange Shannon , Chaiton Michael , Logie Carmen H. , Hamilton Hayley A. , Kidd Sean A. 
Published: July 2023

Introduction
The objective of this study was to examine the impacts of the coronavirus 2019 (COVID-19) pandemic on various dimensions of wellbeing among 2SLGBTQ+ youth experiencing homelessness over a 12-month period during the COVID-19 pandemic.

Methods
2SLGBTQ+ youth (recruited using a convenience sampling method) participated in three online surveys to assess mental health (depression, anxiety, suicidality), substance and alcohol use, health care access, and violence for 12-months between 2021–2022. Quantitative data analysis included non-parametric one-sample proportion tests, paired t-test and McNemar’s test. Longitudinal data collected across all three timepoints were treated as paired data and compared to baseline data using non-parametric exact multinomial tests, and if significant, followed by pairwise post-hoc exact binomial tests. For the purposes of analysis, participants were grouped according to their baseline survey based on pandemic waves and public health restrictions.

Results
2SLGBTQ+ youth experiencing homelessness (n = 87) reported high rates of mental health challenges, including anxiety and depression, over 12-months during the pandemic. Youth participants reported experiencing poor mental health during the early waves of the pandemic, with improvements to their mental health throughout the pandemic; however, results were not statistically significant. Likewise, participants experienced reduced access to mental health care during the early waves of the pandemic but mental health care access increased for youth throughout the pandemic.

Conclusion
Study results showed high rates of mental health issues among 2SLGBTQ+ youth, but reduced access to mental health care, due to the COVID-19 pandemic. Findings highlight the need for 2SLGBTQ+ inclusive and affirming mental health care and services to address social and mental health issues that have been exacerbated by the pandemic.
Optimizing antiretroviral therapy for children living with HIV: Experience from an observational cohort in Lesotho
Authors: Tukei Vincent J. , Herrera Nicole , Masitha Matseliso , Masenyetse Lieketseng , Mokone Majoalane , Mokone Mafusi , Maile Limpho , Gill Michelle M. 
Published: July 2023

Introduction
We describe transition of HIV-positive children from efavirenz- or nevirapine-based antiretroviral therapy (ART) to optimal dolutegravir (DTG) or lopinavir/ritonavir (LPV/r) (solid formulation)-based ART in Lesotho.

Methods
We followed a cohort of children less than 15 years of age who were initiated on ART on or after January 1, 2018 from 21 selected health facilities in Lesotho. From March 2020 to May 2022, we collected data retrospectively through chart abstraction and prospectively through caregiver interviews to cover a period of 24 months following treatment initiation. We used a structured questionnaire to collect data on demographics, ART regimen, drug formulations and switches, viral suppression, retention, and drug administration challenges. Data were summarized as frequencies and percentages, using SAS ver.9.4.

Results
Of 310 children enrolled in the study, 169 (54.5%) were female, and median age at ART initiation was 5.9 years (IQR 1.1–11.1). During follow-up, 19 (6.1%) children died, 41 (13.2%) were lost to follow-up and 74 (23.9%) transferred to non-study sites. At baseline, 144 (46.4%) children were receiving efavirenz-based ART regimen, 133 (42.9%) LPV/r, 27 (8.7%) DTG, 5 (1.6%) nevirapine; 1 child had incomplete records. By study end, 143 (46.1%) children were receiving LPV/r-based ART regimen, 109 (35.2%) DTG, and 58 (18.7%) were on efavirenz or nevirapine-based regimen. Of 116 children with viral load results after six months or more on a consistent regimen, viral suppression was seen in 35/53 (66.0%) children on LPV/r, 36/38 (94.7%) children on DTG and 19/24 (79.2%) children on efavirenz.

Conclusion
Following optimal ART introduction in Lesotho, most children in the cohort were transitioned and many attained or maintained viral suppression after transition; however, we recommend more robust viral load monitoring and patient tracking to reduce losses and improve outcomes after ART transition.
Study of Synthesis and Performance of Clay and Clay-Manganese Monoliths for Mercury Ion Removal from Water
Authors: Chairunnisak Aula , Darmadi Darmadi , Adisalamun Adisalamun , Yusuf Mukramah , Mukhtar Syawaliah , Safitri Ulfa Rijal , Shafira Opie Azza 
Published: July 2023

The pollution caused by mercury (Hg) is a matter of concern regarding worldwide ecosystems and public health. It is dangerous as it is highly poisonous and has more ways to get exposed than other heavy metal ions. Recently, the application of biomaterials with varying structures and designs for mercury adsorption has grown. In this research, clay monoliths (CM) and clay-manganese monoliths (CMM) were synthesized, investigated, and compared regarding their ability to adsorb mercury ions from water to determine the most effective adsorbents. CM and CMM were extruded through a stainless-steel molder with dimensions of 7 holes, 9 mm in radius, and 20 mm in height. The surface morphologies of both adsorbents were characterized using infrared (IR) spectroscopy and scanning electron microscopy (SEM). The effects of contact time (40, 80, 120, 160, 200, and 240 minutes) and initial concentrations (3–5 mg/L) were applied to evaluate both adsorption processes. The experiment was conducted in a batch reactor using a monolithic adsorbent that operated for 240 minutes. The experimental equilibrium data of the adsorption were examined with Langmuir and Freundlich models to find the best-fit isotherm. In the kinetic study, the pseudo-first-order was investigated in both linear and nonlinear models. The adsorption results showed that CMM had the highest adsorption efficiency (42.7%). The equilibrium study concluded that the Langmuir was the most significant isotherm model. The highest monolayer capacity and Langmuir constants (KL and aL) were 0.396, 1.329, and 0.396, respectively. The adsorption of both adsorbents was well displayed in the pseudo-first-order non-linear model. Experiments and processed data compromise the finding that CMM is more effective than CM at adsorbing mercury ions.
Miejsce zwykłego pobytu spadkodawcy jako łącznik normy kolizyjnej w sprawach spadkowych o charakterze transgranicznym – uwagi na tle wyroku Trybunału Sprawiedliwości z dnia 16 lipca 2020 r., C-80/19
Authors: Pieczaba Joanna 
Published: July 2023

Celem artykułu jest przedstawienie problematyki łącznika miejsca zwykłego pobytu spadkodawcy na gruncie rozporządzenia Parlamentu Europejskiego i Rady UE z dnia 4 lipca 2012 r. w sprawie jurysdykcji, prawa właściwego, uznawania i wykonywania orzeczeń, przyjmowania i wykonywania dokumentów urzędowych dotyczących dziedziczenia oraz w sprawie ustanowienia europejskiego poświadczenia spadkowego. Szczególnej uwadze została poddana kwestia dopuszczalności posiadania przez spadkodawcę w chwili śmierci więcej niż jednego miejsca zwykłego pobytu. Tłem dla poczynionych rozważań jest wyrok Trybunału Sprawiedliwości z dnia 16 lipca 2020 r. (sygn. akt C-80/19).. Autorka zestawia przeciwstawne poglądy doktryny w omawianym zakresie, a także analizuje tezy wynikające z wyroku z 16 lipca 2020 r., dotyczące zastosowania łącznika miejsca zwykłego pobytu zmarłego na gruncie rozporządzenia spadkowego nr 650/2012.
Qualitative and quantitative assessment of admittance controllers for hand-guiding surgical robots
Authors: Karnam Murali , Cattin Philippe C. , Rauter Georg , Gerig Nicolas 
Published: July 2023

AbstractWhen using redundant medical robots for hand-guiding heavy endoscopic tools, admittance control allows a completely defined tool and robot null space motion control. Although not a novel concept, comparative studies that help to design and implement admittance control are missing. In a user study, we compared four admittance controllers: one zero-torque controller that used measured joint torques and three others differently mapping forces/torques measured at the handle to tool tip velocity. We found that two of the four controllers (Dynamic MassandIntegrated Mass) outperformed the others.