bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthesis of Highly Active Doped Graphitic Carbon Nitride using Acid‐Functionalized Precursors for Efficient Adsorption and Photodegradation of Endocrine‐Disrupting Compounds
Authors: Ghaffar Rana Adeem , Zahid Hussain Mian , Hammond Nikki , Vlad Luca Simon , Fischer Roland A. , Minceva Mirjana 
Published: August 2022

AbstractA highly active non‐metallic doped bulk graphitic carbon nitride (g‐C3N4) was synthesized via acid‐functionalized melamine decomposition. Specifically, melamine was treated with acetic acid, sulfuric acid, and phosphoric acid to obtain oxygen, sulfur, and phosphorus‐doped g‐C3N4 derivatives. Sulfur‐doped g‐C3N4 exhibited remarkable photocatalytic activity to degrade two environmentally harmful hormones, 17β‐estradiol, and 17α‐ethinylestradiol, due to its narrow energy bandgap and high surface area. The hormones were removed entirely in 30–45 min by adsorption in the dark, followed by photodegradation under visible light (430 nm). Furthermore, the pseudo‐second‐order kinetic model fitted the adsorption kinetics well, and photocatalytic degradation followed the exponential decay model. LC–MS identified the intermediate products for the photodegradation of 17β‐estradiol (E2). This study provides a simple one‐step method to synthesize highly reactive metal‐free doped bulk g‐C3N4 photocatalysts to remove harmful water pollutants.
Colloidal Synthesis of Zirconium Disulphide Nanostructures and their Stability Against Oxidation
Authors: Fadojutimi Paul , Tetana Zikhona , Moma John , Moloto Nosipho , Gqoba Siziwe 
Published: August 2022

AbstractThe need to exploit the exotic properties of ZrS2 synthesized via colloidal means is imperative. For almost a decade now there has been no literature on the colloidal synthesis of ZrS2 nanomaterials. Meanwhile, several publications are available on other methods of synthesis mostly chemical vapour transport (CVT) and chemical vapour deposition (CVD). The synthesized bulk material from the CVT method is further subjected to exfoliation (mechanical or liquid) to obtain mono or few‐layers of ZrS2. With the colloidal method, there is a possibility of the oxide being formed during the synthesis of ZrS2 and likely destabilization of the nanomaterial after synthesis on exposure to ambient environment. In this study, both the heat up and hot injection methods were employed to fabricate various morphologies of ZrS2 nanomaterials. The metal and sulphur precursors were dissolved in a mixture of octadecene (ODE) and oleic acid (OA); and refluxed at a temperature of 290 °C in the presence of nitrogen gas. ODE served the role of non‐coordinating solvent, while OA served as the capping agent. Nanorods, nanospheres and nanosheets were obtained from the heat up method. Meanwhile, the hot injection approach produced nanosheets and nanospheres with well noticeable hollow centres. Powder X‐ray diffractometer (PXRD) validated the formation of the ZrS2 hexagonal phase with traces of oxides of zirconium, ZrO2. The peak of S2p was conspicuously absent while the Zr3d peak was well noticeable in the XPS spectra. XPS and EDS measurements confirmed the replacement of the sulphur atom by the O atom on the surface of the nanomaterials. Only one exciton peak was observed for the absorption spectra from both the heat up and hot injection methods; and thermal thermogravimetry analysis (TGA) revealed three plateaux of decomposition of the nanomaterials.
Impact resistance and mechanical properties of fiber‐reinforced concrete using string and fibrillated polypropylene fibers in a hybrid form
Authors: Najaf Erfan , Abbasi Hassan 
Published: August 2022

AbstractIn this study, the macro‐synthetic polypropylene fibers Forta and Barchip are used. The fibers are added at 0.5%, 1%, 1.5%, and 2% by weight of cement. Additionally, various fiber combinations with varying percentages are employed to create the concrete. Cubic specimens, bending beams, and impact specimens are all prepared on a percentage basis of fiber. The findings indicated that utilizing 1.5% fibrillated Forta fibers raised the compressive strength of the concrete by 18% and the flexural strength of the concrete by 58%. By increasing the usage of Barchip single‐strand fibers by 1.5%, the compressive strength increased by 36%, and the flexural strength increased by 89%. The highest ductility rate refers to the specimen containing 1.5% Forta fiber, with an energy capacity of 672 J. All the hybrid samples also possess a high ductility ratio. Forta fibrillated fibers are more effective in ductility, while Barchip monofilament fiber types can impressively increase the flexural strength of concrete. The hybrid usage of fibers improved compressive strength by 32% and flexural strength by 85%. Additionally, by combining fibers in hybrid form, energy absorption, ductility, impact resistance, and residual flexural strength are increased by 22, 2.3, 3.6, and 5.6 times, respectively, over the control sample.
Multifunctional computational models to predict the long‐term compressive strength of concrete incorporated with waste steel slag
Authors: Piro Nzar Shakr , Mohammed Ahmed Salih , Hamad Samir M. , Kurda Rawaz , Qader Bootan S. 
Published: August 2022

AbstractTo preserve the environment and natural resources, steel slag recovery conserves natural resources and makes landfill space available. Steel slag as a waste material has been partially substituted for fine (sand) and coarse aggregate in concrete (gravel). Compressive strength (CS) is the most significant mechanical attribute for all forms of concrete composites. To save time, energy, and money, it is essential to create accurate models for forecasting the CS of normal concrete (NC). In addition, it offers essential information for organizing the building work and details the ideal time to remove the formwork. In total, 338 data points were gathered, processed, and modeled in total. During the modeling approach, the most influential elements impacting the compressive strength (CS) of concrete with steel slag replacement were addressed. According to the modeling method, the most effective parameter which affects the compressive strength of normal concrete is the curing time. This research employed a Multi Logistic Regression model (MLR), an Artificial Neural Network (ANN), a Full Quadratic model (FQ), an M5P‐tree model, and an Interaction model to predict the compressive strength of normal strength concrete (CS ranged from 10 to 55 MPa) with steel slag aggregate replacement. According to data from the literature, the steel slag concentration enhanced the compressive strength. Based on evaluations with statistical tools like the objective (OBJ) function, the scatter index, and the Taylar diagram, the ANN model with the lowest root mean square error did better at predicting compressive strength than the other models.
Non‐similar modelling of Williamson Fluid over a non‐linear stretching sheet with temperature dependent thermal conductivity and Chemical Reactions
Authors: Mansoor Muavia , Kamran Muhammad Shoaib , Ahmad Bilal , ul‐Hassan Qazi Mahmood 
Published: August 2022

AbstractIn this paper we investigate the mixed convection flow of a Williamson fluid under the effects of temperature dependent thermal conductivity and chemical reaction. The mathematical model for this phenomenon is described in a set of partial differential equations (PDEs) and further this set is reduced to a dimensionless system of nonlinear partial differential equations (PDEs) using a non‐similarity method. The non‐similarity method has an advantage over similarity methods for handling non‐similar problems. The method first uses transformations to reduce governing equations into dimensionless systems of PDEs. The effects of Grashof number of heat and mass transfer Weissenberg number, Prandtl number, Schmidt number and reaction rate parameters on velocity, temperature, and concentration profiles are given in forms of graphs.
Epidemiology of Suicide and Suicidal Behavior in Youth
Authors: Ruch Donna A. , Bridge Jeffrey A. 
Published: August 2022

AbstractSuicide is the second leading cause of death among youth aged 10–19 years in the United States. Numerous risk factors are associated with suicide and suicidal behavior including individual, family, and social characteristics. Knowledge of the complex interplay of factors contributing to youth suicide is highly relevant to the development of effective prevention strategies.
Youth Crisis Hotlines: Merging Best Practice Suicide Prevention Within a System of Care
Authors: Andrews Bart , Coleman Laura , Bowlin Mandy , Cox Catherine 
Published: August 2022

AbstractIn the USA, crisis hotlines, such as the National Suicide Prevention Lifeline, have become a valued resource for individuals experiencing a suicidal crisis. Often staffed by trained counselors, crisis hotlines can provide immediate support and can help to identify a caller’s problem and potential solutions, ensure the caller’s safety, and connect them with appropriate resources. Notably, with the introduction of the 988 crisis system in the USA, it is important that crisis hotlines continue to improve their systems of care as their services will be used with increased frequency. This chapter highlights Behavioral Health Response (BHR), a regional crisis hotline located in St. Louis, Missouri, and details methods they have employed to address gaps in youth crisis response with the creation of the Youth Connection Helpline system. This chapter emphasizes the importance of integrating crisis hotlines with other community resources and the value of tracking outcomes to achieve intended goals. Guidance on how to implement and evaluate a youth-focused crisis system is provided.
Suicide and Self-Harm Prevention and Intervention in LGBTQIA+ Youth: Current Research and Future Directions
Authors: Rubin Alex , Smith Diana M. Y. , Lawson W. Cole , Fox Kathryn R. 
Published: August 2022

AbstractYouth who are lesbian, gay, bisexual, queer, and questioning (LGBQ PLUS_SPI ) and youth who are a gender distinct from their birth-assigned sex (i.e., transgender and gender diverse), collectively LGBTQIA PLUS_SPI , show nearly triple the risk for self-injurious thoughts and behaviors (SITBs). Research to date highlights that minority stressors across structural, interpersonal, and intrapersonal levels may help to explain this heightened risk. This chapter reviews the research linking stress across each of these levels on LGBTQIA PLUS_SPI SITBs. Moreover, this chapter reviews evidence-based treatments to reduce SITBs in LGBTQIA PLUS_SPI youth, highlighting that interventions that reduce minority stressors and increase coping skills in the context of minority stress appear most effective. In addition to inter- and intrapersonal-level interventions, we argue that major structural changes are needed to meaningfully reduce elevated risk for SITBs in LGBTQIA PLUS_SPI youth.
Suicide Prevention for American Indian and Alaska Native Youth: Lessons Learned and Implications for Underserved Communities
Authors: Cwik Mary F. , Brockie Teresa , Edwards Sarah M. , Wilcox Holly C. , Campo John V. 
Published: August 2022

AbstractThis chapter synthesizes data on health disparities in suicide rates and lack of service access and discusses current gaps in research, training, and program implementation for underserved populations. We highlight emerging best practices in underserved communities that are innovative and low cost (e.g., frugal interventions) and discuss their implications for the suicide prevention field. Themes covered include the urgency of utilizing a community-based framework, the importance of early identification and upstream approaches to drive down suicide rates, the value of a comprehensive/holistic approach that is strengths-based and includes culture/spirituality, and the critical role of innovative service delivery models.
Understanding Suicide Bereavement, Contagion, and the Importance of Thoughtful Postvention in Schools
Authors: Diefendorf Sarah , Van Norden Sarah , Abrutyn Seth , Mueller Anna 
Published: August 2022

AbstractThe rising rates of youth suicide in the USA demand thoughtful evidence-based strategies to help schools and communities recover after a suicide loss has occurred. With this chapter, we review research on the experience of suicide bereavement in adolescence, outline what is known about the potential for suicide to spread through social networks and for singleton suicides to escalate into suicide clusters, and discuss best practices for thoughtful postvention in schools and communities.
Care and Domestic Work
Authors: Marchetti Sabrina 
Published: August 2022

AbstractThe transnational migration of women (and some men) as domestic and care workers is based on the increasing expansion of a private market which is recruiting workers, mainly in the Global South, to perform tasks relating to reproductive labour in wealthier countries. To understand the experience of these workers, it is important to consider how this labour market differs from others. It cannot be reduced to payment for the performance of tasks. It is also undoubtedly affected by the private realm in which it takes place. Some scholars have argued that the uniqueness of this labour market lies in the intimacy that it is charged with, as a consequence of the physicality of care work, the privacy of the domestic setting in which it takes place, and the relevance of the interpersonal dimension it entails (Parreñas & Boris, 2010). Let us look more closely at these different elements.
Inequalities
Authors: Marchetti Sabrina 
Published: August 2022

AbstractIn parallel with the development of the scholarship on migrant domestic work, the feminist approach of intersectionality of differences has gained traction in the social sciences in recent decades. I do not have the space here to account for the different understandings of intersectionality and their methodological implications for research (see Collins & Bilge, 2020; Lutz et al., 2016; Romero, 2017). Certainly the fact that some of the sociologists occupied with domestic workers’ issues have also used intersectionality in their work (for instance Helma Lutz in Germany, and Mary Romero in the US) has had profound repercussions. An intersectional approach requires that we avoid homogenizing views on people’s experiences, and seek a deeper understanding of the real elements of commonality or difference between them. In other words, an intersectional perspective tells us that between people who apparently share the same experience, or the same social conditions, there may also be key differences. In the study of migrant domestic work this occurs at two different levels.
Zielsetzung der empirischen Arbeit
Authors: Bruhn Svenja 
Published: August 2022

ZusammenfassungIn dieser empirischen Arbeit wird die individuelle mathematische Kreativität von Erstklässler*innen bei der Bearbeitung arithmetisch offener Aufgaben fokussiert. Dazu werden zunächst relevante Ergebnisse aus mathematikdidaktischen Forschungen aufgeführt, die ein aktuelles Forschungsdesiderat aufzeigen, das durch diese Studie geschlossen werden soll. Anschließend werden die zentralen Forschungsziele und -fragen erläutert, durch deren Beantwortung die individuelle mathematische Kreativität von Erstklässler*innen facettenreich erforscht werden soll.
Explaining excesses in four-leptons at the LHC with a double peak from a CP violating Two Higgs Doublet Model
Authors: Antusch Stefan , Fischer Oliver , Hammad A. , Scherb Christiane 
Published: August 2022

Abstract
Extended scalar sectors with additional degrees of freedom appear in many scenarios beyond the Standard Model. Heavy scalar resonances that interact with the neutral current could be discovered via broad resonances in the tails of the four-lepton invariant mass spectrum, where the Standard Model background is small and well understood. In this article we consider a recent ATLAS measurement of four-lepton final states, where the data is in excess over the background for invariant masses above 500 GeV. We discuss the possibility that this excess could be interpreted as a “double peak” from the two extra heavy neutral scalars of a CP violating Two Higgs Doublet Model, both coupling to the Z boson. We apply an iterative fitting procedure to find viable model parameters that can match the excess, resulting in a benchmark point where the observed four-lepton invariant mass spectrum can be explained by two scalar particles H2 and H3, with masses of 544 GeV and 629 GeV, respectively, being admixtures of the CP eigenstates. Our explanation predicts additional production processes for $$ t\overline{t} $$
t

t
¯

, W+W−, 4b and γγ, some of which have cross sections close to the current experimental limits. Our results further imply that the electric dipole moment of the electron should be close to the present bounds.
Massive Ray-Singer torsion and path integrals
Authors: Blau Matthias , Kakona Mbambu , Thompson George 
Published: August 2022

Abstract
Zero modes are an essential part of topological field theories, but they are frequently also an obstacle to the explicit evaluation of the associated path integrals. In order to address this issue in the case of Ray-Singer Torsion, which appears in various topological gauge theories, we introduce a massive variant of the Ray-Singer Torsion which involves determinants of the twisted Laplacian with mass but without zero modes. This has the advantage of allowing one to explicitly keep track of the zero mode dependence of the theory. We establish a number of general properties of this massive Ray-Singer Torsion. For product manifolds M = N × S1 and mapping tori one is able to interpret the mass term as a flat ℝ+ connection and one can represent the massive Ray-Singer Torsion as the path integral of a Schwarz type topological gauge theory. Using path integral techniques, with a judicious choice of an algebraic gauge fixing condition and a change of variables which leaves one with a free action, we can evaluate the torsion in closed form. We discuss a number of applications, including an explicit calculation of the Ray-Singer Torsion on S1 for G = PSL(2, R) and a path integral derivation of a generalisation of a formula of Fried for the torsion of finite order mapping tori.
Clinical implementation of the Versius robotic surgical system in visceral surgery-A single centre experience and review of the first 175 patients
Authors: Wehrmann Stefan , Tischendorf Kristin , Mehlhorn Torsten , Lorenz Annelie , Gündel Michael , Rudolph Hagen , Mirow Lutz 
Published: August 2022

Abstract
Background
Robotic surgical systems introduce new opportunities for the minimal accessed surgeon. The combination of three-dimensional magnified vision and articulated instruments with seven degrees of freedom provide a good and safe alternative to laparoscopic surgery. Indeed some of these features may support the case that robotic surgery may be better than conventional surgery. In this study, we report our experience of robotic surgery by using the first open console, modular robotic platform in Germany, the Versius Surgical System®.

Methods
We implemented the Versius Surgical System® in April 2021 at our centre. Since then, 175 patients received robotic assisted surgery. All patients were included in this study. Data were analysed by using the SPSS (IBM Statistics) Software.

Results
175 patients underwent robotic surgery. We started the implementation of the system by performing cholecystectomy. After the first 50 successful operations, we began to perform robotic assisted oncological resections. We saw a learning curve with improvements in total operative time and console time until reaching a standard similar to conventional laparoscopic surgery. The perioperative complication-ratio was equivalent for operations matched the histopathological outcome (MERCURY graduation, R0-staus) at oncological resections. However, four patients had to be revised because of secondary bleeding. Interestingly the total hospital stay for right sided hemicolectomy and oesophagus-resection was shorter than in laparoscopic surgery.

Summary
In our opinion, the Versius Surgical System® seems to be a good, promising system and a safe alternative to other robotic systems, although any comparison is still missing. The open design enabling a better communication between console surgeon and bedside-unit assistant as well as the mobile bedside units are very interesting and allow more flexibility. Nevertheless, there are limitations of the system that require a direct comparison with other robotic systems as well as continuous advancement.
A condition for spontaneous capillary flow in open microgrooves
Authors: Mitteramskogler Tina , Hingerl Kurt , Jakoby Bernhard 
Published: August 2022

AbstractIn this work, we investigate the behaviour of liquids in symmetric open microgrooves and give a criterion for spontaneous capillary flow. To that end, we use a two-dimensional model and analyse the liquid morphologies minimizing the Gibbs energy of the system. We find that the condition of a flat liquid surface, which was hitherto assumed, is indeed the solution minimizing the Gibbs energy, so that it can safely be accepted to investigate whether open capillaries fill spontaneously. Furthermore, we find a condition for spontaneous capillary flow that depends on the cross-section of the channel alone. We use the findings to derive the critical contact angle, below which spontaneous capillary flow happens, for three examples including V-grooves, Gaussian grooves, and lenticular grooves.
Vessel and sex differences in pericoronary adipose tissue attenuation obtained with coronary CT in individuals without coronary atherosclerosis
Authors: van Rosendael Sophie E. , Kuneman Jurrien H. , van den Hoogen Inge J. , Kitslaar Pieter H. , van Rosendael Alexander R. , van der Bijl Pieter , Reiber Johan H. C. , Ajmone Marsan Nina , Jukema J. Wouter , Knuuti Juhani , Bax Jeroen J. 
Published: August 2022

AbstractPericoronary adipose tissue (PCAT) attenuation, derived from coronary computed tomography angiography (CCTA), is associated with coronary artery inflammation. Values for PCAT attenuation in men and women without atherosclerosis on CCTA are lacking. The aim of the current study was to assess the mean PCAT attenuation in individuals without coronary artery atherosclerosis on CCTA. Data on PCAT attenuation in men and women without coronary artery atherosclerosis on CCTA were included in this retrospective analysis. The PCAT attenuation was analyzed from the proximal part of the right coronary artery (RCA), the left anterior descending artery (LAD), and the left circumflex artery (LCx). For patient level analyses the mean PCAT attenuation was defined as the mean of the three coronary arteries. In 109 individuals (mean age 45 ± 13 years; 44% men), 320 coronary arteries were analyzed. The mean PCAT attenuation of the overall population was − 64.4 ± 8.0 HU. The mean PCAT attenuation was significantly lower in the LAD compared with the LCx and RCA (− 67.8 ± 7.8 HU vs − 62.6 ± 6.8 HU vs − 63.6 ± 7.9 HU, respectively, p < 0.001). In addition, the mean PCAT attenuation was significantly higher in men vs. women in all three coronary arteries (LAD: − 65.7 ± 7.6 HU vs − 69.4 ± 7.6 HU, p = 0.014; LCx: − 60.6 ± 7.4 HU vs − 64.3 ± 5.9 HU, p = 0.008; RCA: -61.7 ± 7.9 HU vs − 65.0 ± 7.7 HU, p = 0.029, respectively). The current study provides mean PCAT attenuation values, derived from individuals without CAD. Moreover, the mean PCAT attenuation is lower in women vs. men. Furthermore, the mean PCAT attenuation is significantly lower in the LAD vs LCx and RCA.